@crockett53 Sorry this happened to you. When did this take place?
A couple of important things to note about the complaints The ones I looked at are related to the survey portion of the business. The majority of the people that post on this forum are doing mystery shopping and not the surveys. Also, I looked at the most recent complaints and of the first 8, 2 are recent and seem like they are being looked into; 5 have been resolved, and 1 has not. You didn't mention that some complaints have been resolved and that seems important.
Presto would need your tax info before you can claim any other shops because any new jobs claimed would potentially put you over the $600 threshold if the shop is approved. Did you shut the app off for a day and a half? There isn't a reason to do this and it wouldn't make sense that they would shut it down. You would still be able to view shops on the app, but you wouldn't be allowed to claim anything until you submit your paperwork.
How would you know if people you interviewed at a convenience store didn't receive a gift card 2 weeks later?
What did Ipsos say when you reached out to them about the glitches and non-payment. I have had mystery shopping tasks where I submitted typos and I've never been asked to fix them. The editor might mention it, but with Presto there isn't a grade assigned. They do kick shops back if there are missing photos or a section, like comments, are not filled out correctly or doesn't make sense.