Refund and settlement

I don't know who to contact anymore or what to do... <br> <br> I had an account with RCS (NWJ Alberton City) I purchased jewellery with them, I paid my monthly instalments before the end of every month until 20 January 2015 then I settle my account with them in full, I phoned RCS spoke to one of their consultants that day to get their banking details and confirmed it with another phone call for a second time just to make sure I have the right details to pay my settlement amount the consultant advised me to email through my proof of payment straight after so they can close the account which I did on the 20th January 2015. <br> <br> I phoned again asking their accounts department if they received my payment and proof of residence and to please cancel my debit order. \Which they did not do"so each month after January and settling my account they kept on taking the debit order off my account I phoned day in and day out for them to cancel it and requested a refund on the debit orders that have gone off"