I Need Telegram to Review the Ban on My Phone Number

My phone number +2547967137** has been banned on Telegram for the past 4 weeks and I can no longer use it to access or register a Telegram account. Whenever I try to use this number, I am informed that it is banned and I cannot proceed. I do not understand the reason for this ban and I believe this may be a mistake, as I simply want to use Telegram normally. I kindly request that my number be reviewed and that the ban on +2547967137** be lifted so that I can use Telegram again.