Still getting billed incorrectly for hardware sub

Good day, <br> <br> I hope the CEO/ MD can come back to me regarding this ongoing billing issue as I have been out of contract since 31 March 2015 and its seems like this matter will not be resolved unless the MD maybe start looking at the competency of his staff at the billing department.<br> <br> I am getting billed incorrectly for H/w Fees since 2015 nothin April to date and to make matters worst is that I have received a credit of R117.99 for April but for May and June 2015 I was still billed for the same H/s Fees .<br> Does the credit controller or billing department not fix these errors?<br> <br> I have been patient enough and I am really very discussed with MTN customer services since they took over my account from Nashua Mobile.<br> I have never had and billing issue problem that took this long to resolve.<br> <br> I hope this matter will be resolved as I refuse to let another debt order go of on my account and I will only pay the topup package and data bundle for June and will and subtract May h/s fees from current invoice E*** as well which mean you will only get R146.32 payment end of June.<br> <br> Please migate my number to prepaid on 30 June 2015 as well and send me the confirmation that this will be done