MTN- ****************

Ive had a data contract with MTN since Feb/March 2022, which was for 24 months. This year i tried to renew or upgrade, the lady said on her system it shows my balance as R0.0, but when she tries to process my upgrade it shows an oustanding amount. she advised she would speak to billing to get it sorted so she can finalize my upgrade. She never called me back. i called back 2 working days later, and they were telling me the same thing, so i just asked them to cancel my contract as the 1st lady said it will be billed month on month as contract had ended. i no longer even checked if i still received email from them because to my knowledge i have asked them to closed. I even misplaced or lost that sim card(did not bother looking for it as to my knowledge it no longer works). today- more than 6 months later, i get a call from Shabir Shaik attorney telling my my MTN account has been handed over with an amount of Over R2000. I would like someone from MTN to call me and explain how that happened as i requested for my account to be closed since they failed to do an upgrade on my account and was not prepared to carry on on month to month basis. I am definitely not prepared to pay this amount due to the incompetence of their staff, I totally refuse. This is day light *******, who knows if this was not intentional, them not closing my account at my request, so they can make more money out of us. Had they contacted me earlier I would still remember who i spoke to, but its been months,then they come out of the blue telling me i owe them thousands, Yooh, i refuse to be ******. if someone at MTN did not do their job and close my account at my request, who is at fault???? Who must pay for that mistake??? Definitely not me. THEY MUST CALL ME, NOT THEIR AGENTS. SO WE CAN SORT THIS OUT.