>>hugoda+(OP)
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
>>failer+hl1
This happened to me a couple of times when I tried to sign up on their website: instantly banned before I could even enter the onboarding flow.
I then had more success signing up with the mobile app, despite using the same phone number; I guess they don't trust their website for account creation.