I paid for Claude Pro yesterday (excited to use the model as it seems quite good!) and asked it a question about symmetric groups in abstract algebra. I was automatically banned for TOS violations and not given any refund. I'm not using a VPN, and I'm in a supported country.

It seems to be a widespread(?) bug with their abuse model (from a skim of the /r/ClaudeAI subreddit: https://www.reddit.com/r/ClaudeAI/search/?q=ban&sort=top), acknowledged by their community support team 2 weeks ago. But it seems they haven't been able to fix their model, and continue selling paid subscriptions. Their TOS says they won't refund payments if they ban an account for purported "TOS violations".

I contacted support but got an automatic reply saying they're facing a high volume of queries.

sorta feels indistinguishable from a scam to be honest... it should at least be possible to get in touch with a human when things go wrong.