I need urgent assistance for proof of settlement- a month being sent from pillar to post

My name is Yemvelo Sonka, MTN handed over my account to Hammondpole attorney's. I've since settled the account on the 20th of November 2025 but am being sent from pillar to post for a proof of settlement between the 2 entities. My future employment is hanging on this as I need to clear the adverse. Today on the 29th of December I am still being sent up and down. I need this resolved ASAP, its been WELL OVER A MONTH!!!! Chantelle from MTN customer care and MTN appointed attorneys Hammondpole Attoneys please issue me the letter HP**********0. cell **********