This can be also counted as a proof:
Once admin in telegram bounty group said that rewards will be distributed to Payaccept dashboard. If I'm not mistaken, since April dashboard page showed "500 SERVER ERROR" message. Now it works, but I cant login into my account. I got "Whoops! Something went wrong. These credentials do not match our records." message, and when I try to recover my password I get "500 SERVER ERROR" message again.
Payaccept is a vicious circle of problems for bounty hunters and airdrop participants.
If it is right then they have to take their responsibility for crediting the fund. I think they faced problem on their server or they deleted account knowingly to scam with the bounty hunters. If they do not want to scam then they have to take responsibility of their bounty hunters token. Also, if it happens only for you or with few participant then it might be another case.