Err. Looks like he has done this already. Twice.
I now have three batches of credits I haven't received, and the last week I've heard nothing from TrialPay, despite the fact I've sent them evidence to them. Is terrible customer service really the only way any company is capable of dealing with customers these days? We've gone from "the customer is always right" to "give us your money and STFU, customer".
I was rather excited about finally being able to finish some surveys too, after having tried since the first day I registered here. But so far they haven't done anything, not even bothered to reply to my requests. That seems to be a pretty common story to be honest.