I've had that problem with them too. I sent emails and they responded that the check was in the mail. A month later I told them I never got the check and they wanted copies of all of the unpaid invoices. Then they sent me something that looked like a print out from some program that sends checks stating the payment was in "process" and that I would be paid by 2/28/2025. Guess what? No check.

Don't even bother with these people.