Thank you Keri.
The hours of operation should indeed be a lot more clear. Even on the Help page it just says "we pick up the phone from 7 to 5". Customer service schedule and hours of operation are different.
The best would be if these details would show up in the error message itself. Something like "try again in 20 minutes BUT if you're working outside our hours of operation don't expect the problem to be fixed before 7 am the next day". This way I can go do other things rather than stubbornly retrying every 20 minutes.