Unfortunately, I have the same problem! I have emailed the technical team to see if they can fix this issue from their end! 2 weeks have passed and haven't heard back from them! The timeframe for resolving this issue is unknown.
I have the same issue, I am here under Tier2 Visa, working in a game company. I just follow the rules, and in whole tax year had 17 days freelance job in the same profession and level even less than 20 hours per week. but I am not sure can I register as self-employment!! I do not know why they did n...