My account permanently limited

All I did was send two invoices to my sister so that she can pay me back for going to the store for her, I listed the products as groceries and diet powder, so I can't see how I violated terms to the point of permanently limiting my account with no explanation or warning as to why. I was testing out invoices because I plan to start selling my art as a side hustle, but to my surprise I no longer have an account. I've tried the AI and all that to fix it but it's hopeless, my account is gone. What did I even do wrong? 😭