Bad Service

I cannot describe how I feel at this stage with RCS . On 8 November 2017 I requested the settle amount on my account of R5395.90. I paid that amount in full on the 9 November . I did use the incorrect ref so it was not allocated to my account. Then I received a phone call that I was in credit with so you need to refund me so I did email you my bank details. Then you ask me for the proof of payment of R1271 . I send you numerous emails explaining that this is not my money. On 28 Dec I received a call from you guys to confirm I did not make the payment . the money was allocated incorrectly to my account . I even receive a paid up letter that confirmed that I owe you 0.00. This morning I received and SMS that my account is in arrears with 3.13. I am beyond angry . I am ****ed off . Seriously if I every borrow money again from you guys I hope I will be struck by Lighting . When I phone your call center I do not get any help or answer from you guys . If you want the proof please let me know then I will email it to you guys. Please give me confirmation that all accounts is paid in full as per the letter I received from you .