A moment ago I was on a forum for a different game and people were talking about not receiving their in app purchases. I had that issue earlier today when I bought the prime talismans and got a purchase failed notification and didn't receive them. I already wrote to support and I'm waiting to hear back but I thought I'd make this post to ask of anyone had the same problem. According to the OP of a thread explaining the issue on the other forum, it's a problem on Google's side.