In store settlement and cancellation and still being charged

In August 2017 i called vodacom customer care, to find out what it would cost if I wanted to settle my contracts with them as I had 2 lines.The 1 line was a tab bundle which was due to end in the month of September 2017 and the other line was a P8 lite that's due to end in 2018.The consultant gave me an amount and advised that its only valid for 7 days which I understood after the 7days I would need to obtain a new quote. So on the 29 September 2017 I went into the vodacom store at promenade mall to settle my contracts and have it cancelled. The consultant that assisted me then called to get a new quote and it was emailed to the vodacom shop as I had a problem receiving mails. The consultant then print the documents I signed for it and made the payment of R1641 she then emailed the documents back with my proof of payment while I was in store, I was given no documentation back. I asked the consultant before leaving if there was anything else I had to do on my side she responded by saying No everything was sent through and it will be cancelled. The end of January 2018 I received a statement from vodacom and my bank account is being debit again, I called in to customer care explaining that I settled my contract and it should be cancelled an they told me they cannot help me if I don't have a ref number, once they obtain that number I won't be liable for this charges. And of cause I have no ref number has the consultant at vodacom never gave me a ref number after she sent off the documents. I only managed to get to the Promenade Vodacom store on Saturday the 17 February 2018 where I was informed that the consultant that assisted me then, no longer works there. The consultant by the name of Aziz very helpful and understanding tried to assist me. He checked on the system an we discovered that 1 line was cancelled and 1 line was still open I told him I don't understand so what did this previous consultant actually do. Aziz called vodacom care or whom ever they call regarding queries and he was informed that on there side both lines are still open and she was speaking about the quote that was past the 7 days and that's causing the account to go in arrears.. And I was explained that the payment I made was almost like an advance payment. I am extremely upset at the service at stores and the fact that no-one can assist me and tell what's the next step. I left the store still with this burden.. I am a loyal vodacom customer if my records get checked its proven, its not my fault that *********** staff employed or that they lack training! I clearly stated the reason I was in store September 2017 and only to find out that my account that was meant to be closed is running in arrears. I am refusing to make any payments, I expect a response from higher authority because calling in to customer care and going into store is of no use. And the fact that the info on both ends doesn't correspond, and that nothing that gets mailed out of the vodacom store get stored as record is unprofessional. I refuse to pay! Until someone can give me proper facts and proof because I will take this to the next complaint level