I Need Help To Recover My Telegram Account

I have been suddenly logged out of my longstanding Telegram account on my Android phone and I am now completely unable to log back in. My account was registered with an old phone number that I no longer use and to which I have had no access for more than six months. All my important contacts, messages and personal information were stored in this account, and losing it is causing me serious distress. Because the login verification code is only sent to the old number, I am fully locked out of my account. There is no alternative recovery option such as email or another secure method offered in my case, and it appears that my account may be permanently lost despite still being linked to my identity. I find it unacceptable that there is no practical recovery path when a phone number is changed. I have already contacted Telegram support and explained the situation, but I have not received any response so far. I urgently request that my account be recovered or securely transferred to my new phone number so that I can regain access to my data and continue using the service. I ask Telegram to review my case as soon as possible and provide a clear and workable solution.