Turns out, 15 years ago when I signed up, I was 15 (I am 30 now) and that is against their terms of service. So my account is permabanned and they said to make a new one with a different email.
I can understand they don't want people under 18 to sign up, but for fucks sakes, it was 15 years ago, this feels like a fairly stupid policy.
I would like to add that the customer service experience in this instance was pretty good - they had a queue system where you can leave your number and they call you back instead of keeping you on hold forever, and they representative was helpful and professional and told me straight up that I could make another account.