Until now, 50% of activated keys in packs come across and the company is not going to fix this problem in any way. They just don't care about you or your time.
Their support is just useless. I have to spend half an hour, take screenshots, answer the same stupid questions 100 times in order to end up with 125 diamonds. And after opening the next pack, I received another duplicate from the thrash game for $0.1. And all the steps must be repeated again...