Cancelled account referred to MBD

I cancelled my account with vodacom last year November 2018, i sent all the cancellation documents and proof of payment to the email address they had provided. i got an sms to confirm my cancellation. a month later i received an invoice with the same amount i had paid, i called their call center and they confirmed that all is in order and that i do not owe anything. January 2019 they deducted 1200 from my account, i reversed it because my contract with them had ended and i did not owe them any money. on the 13th of July 2019 i received a call from MBD stating that my vodacom account had been handed over to them, i informed them that it must be a mistake coz i do not have a vodacom account. on Monday i called vodacom cancellation and i couldn't get through as i am a prepaid customer, i called the other line an spoke to a consultant who told me that she can not assist on her side and she transferred me to cancellations, again i couldn't go through. i called them again and spoke to Joy Raphotle who told me that Vodacom cant help i must call MBD. i called MBD and they requested that i send them proof of payment, i did.

this is really frustrating as this is affecting my credit record. i have never heard of such bad service and incompetence. i had a contract with vodacom and not MBD. this is one of he reasons i cancelled in the first place. i need this fixed urgently.