Bad service

My acc was **********ly upgraded. Matsie Mthembu had contacted me regarding the investigation and confirmed the ***** (ref: EC-0WXF-2JXLXX) on 10 February 2015. I have contacted your client services department to assist with the refund and the reversal of the contract back to its original state. I still have not received any feedback regarding this. When I check the statement on your website I see that I am still being billed for the ********** upgrade & am very concerned that you will be debiting me again on the 1st for this account. This was initially reported to you 12 January & has since still not been sorted out. I have mentioned previously that this sim card was used in my tablet for work purposes and its going into the second month that I can't use my tablet. Further this amount of the ********** upgrade is unaffordable and I have to wait another month for my refund. Then come 1 March, you will wrongly debit me again and make me wait another month for a refund. At this point I do not trust your accounts department and your company as a whole. Please can you assist in the immediate cancellation of the contract for number *** and put a stop to all future debits.