Customer service agent Failed to closed my account.

2 March I paid my Mr. Price account in full. In order to close it.. When I went to Mr. PRICE Middleburg mall, they kindly assisted by calling the customer service which said, I have a positive balance of R119 meaning I need to buy for that so that my balance can be zero than close the account.. 3rd march I did that, they said I must call again after 24hours or text them on WhatsApp. Between the 5th and 6th I WhatsApp the customer service and an agent "assisted to close" my account. Only to find I received a statement saying I owe 159 due to charges, meaning my account was not closed. To think the customer service went back and forth because of this 24 hour thing, and not explaining things thoughly and me being patient only for them not to close my account when the agent said it was closed on the conversation,, i enquired regarding this but another agent insist also that I owe R159 despite the fact that I was **** to that my account was successfully closed.. This is frustrating.