I also got banned from Claude over a year ago. The signup process threw an error and I couldn't try again because they took my phone number. The support system was a Google form petition to be unblocked. I am still mad about it to this day.
Edit: my only other comment on HN is also complaining about this 11 months ago
I don't want use the product after having a bad experience. If they cannot create a sign up page without it breaking for me why would I want to use this service? Things happen and bugs can occur, but the amount of effort I have put in to resolve the issue outweighs the alternatives that I have had no issues using.
I tried signing up to use Claude about 6 months ago and ran into an error on the signup page. For some reason this completely locked me out from signing up since a phone number was tied to the login. I have submitted requests to get removed from this blacklist and heard nothing. The times I have tried to reach out on Twitter were never responded to. Has the customer support improved in the last 6 months?
Edit: my only other comment on HN is also complaining about this 11 months ago