TikTok Support Only Offers Third-Party Recovery but My Account Has None

I am writing regarding my TikTok account with the number 06951665**. I have lost access to this account because I no longer have the phone number linked to it, and I have also forgotten my password. There is no third‑party recovery method (such as email or other social accounts) connected to this account. I lost access to the account around February and since then I have not been able to log in. I contacted TikTok support, but I was only advised to use a third‑party method to recover my account. As I mentioned, there is no third‑party information registered on this account, so I cannot complete this step. I kindly request that you help me regain access to my account by adding my email address, adamscarly***@gmail.com, as a recovery option or by providing an alternative way to verify my identity and restore my access, since the usual third‑party recovery methods are not available for this account.