Angry customer ,mtn is *****ing my man and agents are not doing their job

Dear MTN,

Angry customer

When are u gonna stop *****ing our money , I canceled the contract that i had with you guys in January already spoke to the guy by the name and Bryan Sibeko who confirm and assured me that the debit order is cancelled and provided this reference *** as an assurance that all is canceled but you continue to debit my account

When ever I call customer service ,ill be told that my account is still active and no one whats to be accountable,and ill be told that there was a system error thats why account is still active and your agent in the call center drop calls on me if they not transferring me from pillar to post

Can this be sorted out urgently or else i will be going to the ombudsman for you guys are now ******* ,such a big company to be ******* and have rude agents is such a disgrace

Get back to me urgently