I’ve had the message “Failed Shop Pay Installments payout” on my Admin home screen for months. When I try to contact support I get a 400 error on my pc or a blank screen on y phone. Seems like quite a problem
It’s also a good idea to clear the cache on that browser if you’re running into any sort of difficulty with accessing or using forms online.
Let me know how you get on with those steps and if you’re still unable to access support after that.
In that eventuality, if you could share some images of what you see when accessing the Help Centre and any errors that prevent you from proceeding, that would be great!