I'm Having Problem Logging In My Telegram Account

I am writing because I have been unable to log in to my Telegram account for about a week. Each time I try to sign in, Telegram says that a login code has been sent to my phone number, but I do not receive any SMS at all, so I cannot enter the code and access my account. My account is registered to the phone number 2347013368*** and I normally receive Telegram login codes via SMS. Now, however, the app only shows the “Enter Code” screen and confirms that a code was sent, but no message ever arrives on my phone, even after waiting a long time and trying multiple times. During this period I have tried everything I could on my side, including common troubleshooting steps, but nothing has helped and I am still locked out of my account. I kindly request that you restore my access to my Telegram account linked to this number or provide an alternative secure way for me to log in, as I urgently need to use my account again.