UNAUTHORISED DEBIT ORDER

A debit order from COMIT TECHNOLOGIES are debiting my account for the past 4 years for a OneBox email account that I know nothing about. I got the details from my bank. I called and spoke to Brevin from COMIT TECHNOLOGIES ( ********** 793) will STOP the DO for R32 for ISPB EM- ********** -4 which is a One Box Email that was sold to me by Elite Mobile when they sold me a Cell Phone Contract. I called Brevin on 08/05/17. He said that it wont go through on 15 May 17 I called Brevin on 08/08/17 - to say debit orders still went through on 15 May 17, 15 June and 20 July 2017, they must credit me for 2 months and CANCEL it completely. He said they will do it. I called Sbo on 06/10/17 - to say it stil went through on 18 Aug & 15 Sep17. He said they were off line & to call back the next day. I called back 10/10/17 asked to speak to manager Kershan Pillay.. They asked me to hold. I held on for 15 mins and the phone went blank.