PAYING MORE THAN 2 YEARS FOR THE NUMBER I NEVER HAD.

I started using MTN in 1999. I have not had a problem with them up until recently when they started charging me for something I do not know. I tried several times to contact them about the error they are making but they would tell me to contact the complaints/ cancellation department which I tried many times to do with no success. The other day I tried and someone answered, he told me the reason they do not answer and sort my issue is because they are working from home due to COVID-19. years.They would tell me to write my complaint and send it through email to the email address I could not reach because they were somehow blocked. To cut the story short I ended up reversing the debit order because I was charged of something I do not know. This month I started receiving some messages from the debt collector saying I am owing a large sum of money. I AM VERY DISSAPOINTED WITH MTN. IT IS A PITTY THAT THE MAIN NUMBER I USE IS THEIR NUMBER. I never thought they would turn into such ******.