Id number *** my phone *** or ***

Hello how are you I cancel my contract 2 years ago and I never never use it and uh I pay my account and sort out everything and when I call MTN he say you owe him this money and lot of his stories and MTN never respond anything and it's still not sort out in my account so you tell me what must I do I will go to court you must tell me because two years I'm really tired of now because of my credit my credit score getting down because of the MTN so please sort out my account because it's still waiting for that I put my affidavit and invoice where I pay amount and when I sorted out on 2022 31s August I sort it out my account mtn say still you owe him