My notes for Goodwin say "reports generally due 24 hours after shop completed" but I'm not sure where I got that information and use that as a general guideline when I'm considering taking a job, I wouldn't rely on it as an official requirement.
I've noticed the shops on iSecretShop are sometimes hard to find a deadline for. I've had to email the scheduler in the past to confirm a deadline. (I'm not sure if you booked the shop on iSecretShop or one of their (many) other sites. It can be confusing with companies that have so many platforms)
Good luck! Let us know how it turns out.
With each GAH shops comes a Shoppers agreement. And the agreement says, (because we must download and read it -------->"Shopper will secretively shop clients’ establishments and accurately and honestly document his/her factual experiences and report them to Company within 24 hours of the shop. If Shopper does not report or is not submitted to Company within 24 hours, then the report will be considered invalid and Shopper will not be compensated for that specific assignment".
YOU say you have done other shops for Goodwin, I don't know why this one timeframe seem foreign,
If you have spoken too someone from the GOODWIN and you did report the shop late and they STILL said "they were going to pay you". Then all is good. But other than that you may be treading on thin ice.
Many of the scheduling company on iSS have different reporting timeframes, so generally you have to go with the company whom submitted the Assignment. And you stated you did a shop for GOODWIN.
I am saying somewhere in your guidelines there is a reporting time frame. AND maybe someone ---->GAH or GAH may have overlook it. I have seen and experienced shorter time frames with GAH but it was in the guidelines..
Keep communicating with them, to get paid.