By checking the “Select Friends” box in the gifting pop-up, you can send gifts to all of your friends on the list. But you can only send about 20 requests to your friends, and an error might occur when you try to send them all at once.
 

The number of screenshots you can post is limited. Also, there is a possibility of a posting problem. If you can’t post screenshots for a long time, please contact support@doubleucasino.com for further support.
 

You can get a friend invite bonus of 50,000 for each of your friends. You are paid only when you invite friends who have yet to play (logged in) this game, and if they actually accepted your invites. 

The VIP is a special casino for Premium/VIP members, and they are given a free pass to The VIP during the membership period.

You can join premium membership by purchasing at least one of packages with price over $39 dollars. If you want more information on Premium Membership,

please click here. 

Connection lost pop-up comes up when your connection has been lost.
Connection lost can happen due to a number of factors.
One of three notice pop-ups inform you of the factors that resulting connection lost occurred to your game.

I. Another login into your account



This pop-up indicates that your connection has been lost by another login into your account from another browser, browser tab, or computer.
In DoubleU Casino app, only one login is allowed per user account at a time as stated on the pop up above.

This issue can happen due to the factors below : 


• Click on the link to the same app page.

If you click on one of the links to DoubleU Casino app on free chip event post, bonus feed on your news feed, or any other post while playing the game, you will be logged out of the first client (game) because the link loads another client into your web browser's tab. 

Therefore, it is recommended that you refrain from collecting bonuses from the feeds while playing game.

• Another login into your account and game loading from another computer or device.

In this case, you'll be logged out of the game immediately.
Another person could be a family member, relative, friend, neighbor, or any other related person. Therefore, you should refrain from sharing your account to 
prevent connection lost. 
Account abuse caused by security breach is also a core factor. You and another person may attempt to log into the game competitively, so connection lost would occur repeatedly. 
 
• Multiple loads of games into multiple browsers or browser tabs by mistake.

You might load more than 2 game clients into a single web browser or browser tab by mistake or accident.

In this case, the first session will be closed immediately.
 
 
 
II. Network problems on user's internet or casino's server



This pop-up means that your session has been closed due to the instability on your network or the server.

This issue can happen due to the factors below : 
 
• Unstable local internet service 

Unstable internet service is one of the important factors of frequent connection lost. In this case, it is recommended that you ask your local internet
provider to check out your internet status.
 
• Wireless LAN 

Wireless LAN is more unstable than local internet service, so network disconnection may occur more frequently.

The frequency of connection lost may differ according to the status of wireless LAN service nearby.
 
• Auto-lock option in Windows 7 / Vista
 
Computer locking is a security measure that is common for all Windows Operating system. Whether your computer stays idle for a specific time, or you lock it by yourself by pressing specific combination of keys. 
The computer becomes "locked" and you have to enter your user name and password to unlock it.
In Windows 7 / Vista, auto-lock disconnects your PC from network, so your game could be disconnected frequently if you selected this option.

To prevent this, you're strongly recommended to follow these steps.

1. Right-click the desktop and select "Personalize".



2. Select "Screen Save”



3. Deselect "On resume, display logon screen" check box to disable auto-lock option.



Auto-lock option in Windows 10
1. Right-click the desktop and select "Personalization".
2. Click on the “Lock Screen”
3. Click on the “Screen saver setting” button.
4. Deselect "On resume, display logon screen" check box to disable auto-lock option.
 
By this setting, you can prevent disconnection occurred by a long-time "idle" status.

To activate screen lock after the specific time of "idle", please increase the amount of minutes in "Wait" box.
However, you're recommended to be careful in using this setting because another person might use your PC while you're staying out of it.
This is only a guideline to prevent disconnection, so DoubleU Casino has no responsibility or liability for any possible security breach caused by disabled auto-lock option.
 
•  Server down / crash / instability
 
The game servers are provided and managed by a server providing company, so unexpected accident may occur in these servers by natural disaster,
breakdown, malfunction, erroneous management, or any other factor.

It rarely happens, but it might happen.
 

•  Maintenance
 
We have an engineering skill to apply a patch without closing the server, but we sometimes have to shut down the servers to improve our system or fix the
errors on our system.

We try our best to notice you the maintenance in advance.


III. Temporary malfunctions or errors




This pop-up shows that your session has been closed due to temporary malfunctions or errors occurred either in your client or the server.
 
Most of the time, it's temporary.
 
So, please click on "Rejoin" button in a moment to go back to your game.


IV. Countermeasures

We have several countermeasures to protect your free spins, hands, payouts, or any other item from lost connection.

For example, during slot play, you can directly go back to your bonus round without losing free spins if you click on the “Rejoin” button or refresh your web browser after losing connection.
 

This measure is capable of preventing loss or damage to the following:


• Slots : Free spins and winnings

• Video poker : Multi-hand play and winnings.

This is how you can attach receipt of your payment.

1. Left-click on the reverse triangle on the right of "Home" button on your homepage.

 

 

2. Click on " Payments" on the left, and click on "view".

3. Click on the number of amount below "Amount".

4. You can check the receipt of your payment. Your purchase would've been made only if "DoubleU Casino" is indicated on the right of "App" 

5. If you want to learn how to  take a screenshot of the receipt, please click the link below.

 

How to take a screenshot

 

 

 

 

This is how you can take a screenshot.
 
For Windows
Press the "Print Screen" button.
Open Microsoft Paint. To do this, click Start > All Programs > Accessories > Paint.
Click inside the white part of the screen.
Go to the Edit menu and select Paste.
Click File > Save As.
In the box that pops up, change the "Save As" type to JPG.
After typing in a filename for your image, choose a location on your hard drive to save to (ex: Desktop) and click "Save."

For Mac OS X
Simultaneously hold down the ⌘-Shift-4 keys.
Press the spacebar.
Click the open window that you wish to take a screen shot of. The screen shot should appear as a file on the desktop labeled "Picture 1." 

For Android
Press the Power and Volume down buttons at the same time.
If that doesn't work, press and hold the Power button for a few seconds. Then tap Screenshot.
If neither of these work, go to your phone manufacturer's support site for help.

For iOS
https://support.apple.com/en-us/HT200289

For Amazon
Press and hold the Power button and Volume Down button at the same time for 1 to 2 seconds. A preview of the image will appear on the screen briefly, and then disappear.
Open the Photos app.
Open the left panel, and then tap Device. Your screenshot can be found in the Screenshots folder.
 

 

Please click on one of the following links to learn how to clear your web browser cache and cookies.

 

1. Google Chrome

cache & cookies

2. Microsoft Internet Explorer

cache & cookies


3.  Mozilla Firefox

cache   /  cookies


4. Apple Safari

cache & cookies


5. Netscape Navigator

cache & cookies


6. Maxthon

cache & cookies

7. Opera

cache & cookies


8. Other Web browsers

If your web browser is not shown above, please visit Google search and enter “(the name of your web browser) clear cache and cookies” into the search box and press “google search.”

Hacking issue can happen due to a number of factors.

Please note that our system is not vulnerable to security breach attempts by small hacker groups because DoubleU Casino tech team is equipped with high-level security measures.

To prevent hacking or account abuse, DoubleU Casino support team have been trying to give recommendations to players.

DoubleU Casino support team has been trying to keep track of scam pages copying our Fan pages, and a new scam page has been found recently.

It copies the cover photo and the profile picture of our FreeChips page, which is easily done by "copy and save".

More scam pages could possibly be created, but we have no authority to close down those scam pages forcefully.

Therefore, it is strongly recommended that you beware of these pages, and we will give you an alarm through a security alert post on our fan pages to prevent more damages.

Please note that  DoubleU Casino Fan page and FreeChips page (click to visit) are the only official fan pages of DoubleU Casino.

If you find any scam page of DoubleU Casino, please report it to us through Security/Hacking section on Help Center(click to visit) to prevent more damages.

 

The pictures below show you an example of scam pages trying to hook you.
 

1)  This scam page has "29" likes, much less than those of our fan pages. Also, the main titles of our fan pages are "Double U Casino - Free Slots, Poker, Blackjack and Baccarat" and "DoubleU Casino Freechips" each, different from the title of this scam page.

 

2) The picture below shows that it uploaded a post to hook DoubleU players. The URL leads you to a crude phishing app.

 

3) Both of our Fan pages DO NOT show the messages below.

 

4) This scam app entices you to fill out an useless survey trying to phish your account, or download rubbish files with virus or malware, so it is strongly recommended that you do not click any of links on these sort of scam pages.