Autopage Service is poor

I have a problem with my new upgrade account which is My choice 100. Since February 2015 I called Autopage to put my line on a top up and not an open line now I've been paying more than R600 on my monthly instalments of which I cant understand because when my free minutes are finished I load airtime every time. So these unbilled charges that they're busy billing me with I don't know what it is, this is frustrating and I'm angry because this is not the first time I've reported this to autopage. The service that I'm getting from them is very poor and wouldn't recommend anyone to join them<br> Yesterday I called to query this and I asked one of the consultant to put me on a different package which is offpeak 200 topup, instead of doing that he loads 200sms on my account and I didn't ask for that.<br> <br> please assist as this is getting out of hand and the sad part is I cant cancel this contract because I just started with them. this is the worst service I've ever got in my life from Altech Autopage.