Horrible and Pathetic Service

I have been trying to get hold of MTN to cancel my Data contract due to affordability with them for the past 2 months and they are not willing to assist me . Whenever I call I'm being transferred to their retentions department which never answers their line , I hold for more than an hour until the call disconnects without getting through , subsequent to my failure to get hold of them I then wrote to them to request to cancel on the 04/08/2021 , I received response from Catherine Phiri only on the 13 /08/2021 # *** asking for security questions and Iresponded to her email and she has since ghosted me and the debit orders still continue to deduct from my account , I kept calling daily to follow up and to date I am still not assisted , I last made contact with them on the 02/09/2021 where I spent hours with their so called service champions on the line , they kept sending me from pillar to post refusing to transfer me to retentions to follow up on my cancellation request , until I requested to speak to a manger (Nadia Ali ***) who also failed to assist like her agents , she was rather rude and abrupt with me and did not show any empathy or concern after I told her my complaint but transfer me to their unreachable retentions team and I was still left to hold for more than an hour until the line gave up and disconnected and ended up not being assisted.

I guess I'm left with no option but to reverse the debit orders and will not take account for them as I long sent a request to cancel my contract and MTN is refusing to assist me with my simple request