Just recently, they've switched tactics on me. I've been doing large retailer shops for them for 2+ years, been getting consistent 9-10/10 reviews. The payment system before wasn't the best... do the work, submit, get paid 2 months later - but at least they paid, and the shops weren't that bad, so I was quite happy to continue doing them.
I recently did some shops for them in September and October, I submit the shop, get my 9-10/10, and then I get an email from them saying they are not accepting the shop, saying it's not acceptable. I followed the job order to the letter, I did the work, now they are refusing to pay. They have not responded to any of my emails.
Before they started doing this, I didn't have a problem. Now I'm not accepting their work and I'm advising every shopper out there to avoid this company like it was cancer.