Mondo & MTN Escalation

To whom this may concern

I am sick and tired of MTN sending me bills that I need to pay my contract with Mondo, I have cancelled my contract within the 14 days cooling-off period on 22 June 2021. My cancelled reference is ***. I want them to please stop trying to debit my account as I will take this up with the ombudsman as this is ***** and I have never accepted any debichecks to debit me?

I want you to stop sending me billing information to pay as I have no contracts with MTN or Mondo. Please resolve urgently.