Unfair Buerer listing

I was offered and contract by this nonsense company and was not happy with the product then canceled . cell c was debating me for a full year and was reversing. This has affected my credit score and now i can't take a bond because it shows arrears in cell c. Please sort this out and remove me from the buerers . i don't owe you anything and ill never deal with cell c ever again. Stay away from this company