I Want To Reactiavte My Previous Telegram Account

I have been using a Telegram account linked to my previous phone number on an Android device, and recently I changed my phone to a new iPhone. For the past week, whenever I try to log in to my previous Telegram account on the new iPhone with the same number, instead of opening my old account, a completely new Telegram account is created and opened. I did not delete or close my old account myself, and I only changed my device. I want to continue using my previous account with all my existing contacts and groups, but I am unable to access it because the app always opens a new account instead. I have not yet been able to solve this issue through any support channel. I kindly request that my previous Telegram account associated with my old phone number be reactivated and restored so that I can log in to it on my new iPhone, and if necessary, that the newly created account on this number be removed. I would like your support in recovering my old account and ensuring I can safely access it again.