Recurring Billing Issue

I signed up for an 8ta (Telkom Mobile) 15gb promo data contract in 2012 and was told that the<br> contract is a month to month contract, as I did not want to be locked<br> into a standard contract. I was always billed R249 per month, until<br> December 2014. My sim card got damaged and I then got a sim swop from<br> your Canal Walk Telkom Mobile store. I saw my account being debited<br> with R865 on top of my normal R249 monthly fee and I was further<br> charged another R865 in January and February 2015 - I only noticed<br> this in February 2015 unfortunately. This is when I lodged a complaint<br> and was credited the amount that I overpaid to my Telkom account (REF<br> : ***9). I was not charged for March and had sufficient credit for<br> a few months, but I was debited R398 from my Cheque account at the end<br> of April. Telkom Mobile owes me almost R2000 according to my<br> calculations and bank statement. I lodged a complaint and it has been<br> almost a month and nobody has gotten back to me (***). I am<br> very angry and frustrated, as this was supposed to be resolved the<br> first time around.