Vodafone India Number Blocked On Telegram

I am a Vodafone India customer and I am unable to use my mobile number on the Telegram application because it is shown as banned. For approximately the last five months, whenever I try to use Telegram with my number, I receive a message that my phone number is banned and I cannot access my account. I request that my number and related lines be checked, that the reason for this ban on Telegram be investigated in coordination with Telegram if necessary, and that my number be reactivated for use on Telegram. I would like the ban to be removed or a clear written explanation to be provided about the reason and what needs to be done to resolve it.