Double charge for months

<p>I called Telkom last year to migrate my accound from a 30GB lte contract to an uncapped package. the consultant told me that it would not be a problem. I confirmed in writing with her that I only want the uncapped package and no other. i.e cancel the 30gb one. For the past 6 months I have been billed for both and nobody at Telkom wants to help. I call daily and am put on hold for ages on my own airtime. I am given the runaround and every time I am told that the manager is being copied. I am unsure of how to proceed but very disappointed.</p>