Missing Gems upon Purchase

Hi there, I have bought the following:
13 gems
1 gem
150 gem

I’ve got the confirmations from apple and got the receipts on my e-mail. I tried the in-game “Contact Us” but never get replies from them. Very disappointing…

None of them came, and every time I buy gems this is what pops out:

Send a pm to this guy, he should be able to help.