So after reading all the warning that you would eventually get paid, but would need to send multiple reminders, I chose to take one anyway as I was going to be in the area and needed a place to stay.
I did the shop on Sept. 16 and put a reminder to send them an e-mail at the end of the month to send the reminder in line with the 90 timeline.
I opened my e-mail today to find the notification from them that it was being deposited to paypal and checked the account and it was there.
I get that 90 days isn't great and still wouldn't do a shop unless I needed a room because of that, but wanted to let you all know they did pay without an extra communication from me.