Bests & Worsts Reviews from Amazon

Purchased coins are immediately deposited into your account and they never expire! So, please tell me why I will be losing coins if I don't use them by a certain time? I'm positive that all of the coins that I have (only 123 coins!) were bought and paid for by me! Normally, I wouldn't have made any in-app purchases, but I was really into this one game and I needed coins to advance, get extra lives and such, and get power-ups, etc...so I bought them, now I received an email stating that I will be losing 20 coins as of 6/01/16, that's not right or fair! I am at my wits end and I'm fed up with all of this coin business!500 Amazon Coins