fruad

i am very dissapointed in MTN, I had 3 contracts with them i finished the other one in September, and in October i called for the cancelation and i was assisted by one of their worker on 23/10/2020 and she advised me that the contract was cancelled, but to my suprise in November they still deducted i called again but to no avail i was sent to the cancellation department which never answer their phone until today, December did the same and was assisted again and the lady even sent en email to ask the Retention depart as to why they have not cancelled, at this moment i am still struggling with this and my worry is that they are billing me with the services that i am not using now i have over dues on the account because i even last used the sim card in August 2020, and this is affecting my credit profile, should i require any credit facility i wont be able to qualify because of MTNS fault and robbing us our money this is fruad and *******.