Ok, so my Angel Wendy is currently lvl 3. I have leveled her up to the 25 card limit. All that was needed was to pay in coins to level her up to lvl 4. I tried to buy the upgrade but was given an error to please try again or whatever. I did thise multiple times, it never worked. So I closed the app. When i rebooted and looked at the card. She is still lvl 3 but to upgrade again its asking for 50 cards to uprade! Wtf... I would understand if she was lvl 4 and asking for 50... But she is still lvl 3, with no upgrade available unless i collect 50 more cards. Someone please help. Its annoying and would love help from technical support. Anyone else have an issue like this?