FNB Monygram "System Currently Unavailable"

For nearly 3 weeks I haven't been able to receive a MoneyGram. The app keeps giving the same error message at the last step "Your request cannot be processed, System currently unavailable" I have called the number provided in the error message, they weren't able to help, I contacted another department, they weren't able to help, I tried at an ATM, without success. I then tried at a teller at an FNB branch, they took a screen shot of the error message and forwarded it to the forex department. I was then asked to try the app again. When I forwarded them a screen shot of the error message, they passed it on the the IT desk. Now for the past 3 days I haven't been able to get a response from them, despite my daily requests for feedback. Please, is there any capable individual that is able to assist from FNB?