Deal with the ******* and leave my name out of your records - You gave your gadgets to someone!

In March 2022 and amount of R5487.13 was debited from my FNB account with reference number by SP BA***. I learnt it was MTN after calling my bank and they confirmed it is a ****. I called MTN and was requested to send an affidavit, i went to the Linden police station and was given an MTN escalation reference number: *** by ***. FNB refunded my money after 25 days and MTN did not come back to me and no more debit orders went off my account. In August I receive sn SMS, e-mail and calls of demand from *** who confirmed that MTN has handed me in. There is judgement on my Clear score account for R48581.07 which has to be paid IMMEDIATELY (their SMS is written in BOLD). I fail to understand why MTN is not investigating who they signed a contract with and get their gadgets or money from that *******. I never lost my bank card or ID, They have an 071 number that they accepted and confirmed the sale with because no one called my number. I would like them to please remove my name from your debt collectors and your system because I do not have a contract or intend to have any with MTN.