Their sevirce sucks

I paid off my account on the 24/10/2017 , they still debited my account after the account is paid-up . Now i want my refund , closure of the account and paid-up letter no one is willing to assist me they keep extending day after submitting all the documents they required . I have wasted more than R200 airtime calling for my money. The Agents I have spoken to A rsc : Thulula Nyathi, Melisa Peters ( who was once very helpful) , Moeshfieqah, Magret and Nikitha. non is able to assist . if you request to speak to a manager they always in a meeting .