@Simon4303 do you remember if you happened to link your phone number before to another Airbnb account? If you already contacted Airbnb support, you may follow up with them and ask them if it's possible for the support team to unlink your phone number from the existing account as that is the only way for you to use your phone number. Otherwise, you may need to use another phone number for you to be able to verify your Airbnb account. Hope this helps!