Bought tokens did not appear in Wallet

Hi guys,
i see that happens quite a lot. Bought tokens through fixed swap and did not get tokens in my binance wallet. Is there a proper way to check if this is a scam or write to somebody?

I understand the idea behind such communities and websites that facilitates such auctions and swaps. Still it is kind of amazaing that there is no real support, administration and checks.

Best,
Nikola