Ms ND Radebe

I will like to be assisted regarding Finchoice bad service towards me, i took a phone contract with them 2018, and the contract was for 24mnth,they were deducting R 814.00 monthly. Until last year Sep i request a settlement letter and they emailed me one. I PAID the settlement amount which was R8600, i emailed them a proof of Payment for them to closed the account. To my surprised i have not receive a proof that the account has been updated and closed. And they went back again to my Bank Acc Debiting the same 814.00 they used to Debit. When i call them they take me from pillar to post, their email is not working or someone whose checking the emails is ignoring my emails. I have been emailing the Proof of Settlement Payment but they still debit money in to my account. Can someone assist me please because this thing is affecting my credit record.