I was on the madden mobile forums and saw a few people who somehow collected other people's cards/coins. I'm not sure why this is occurring but I will report this as soon as possible.
You may want to delete madden mobile (if your account is connected to Facebook) then restart your device and reinstall the app. I'm not sure if this will work.
You could also try doing the following steps:
1. Connect device to your PC
2. Install and open iExplorer (any other file browser for your device will do)
3. Navigate to Apps -> MaddenMobile -> Library -> Caches and delete all contents inside that folder
If none of the above work you can contact EA here.
You can live chat with an EA representative here.
On behalf of EA and all affiliated people (although I am not), I'm sorry that this is happening. Hopefully one of these works. Have a nice day!
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