Just chipping in with my 2c here.
I've been unable to log in to the Velocity eStore for over two weeks now. I'm getting the same "Error 500" message as others (have tried various computers, browsers, internet connection etc. all resulting in this error). I have spoken to the chat/help line twice: the first time the person said that they would resync my account and that I should try again in an hour's time (didn't work); the second time the person on the other end confirmed that Virgin/Velocity were aware of an issue affecting "a number of accounts", but couldn't give me an answer as to when it would be fixed.
Like mgmm2025, I also work in IT and heads would be rolling if this happened in my organisation. I should also note that the 70-80min chat/help sessions were pretty frustrating.
Fingers crossed....