Misleading information

On the 13 Nov 2015 I went to Altech Autopage in Southgate Mall to request a cancellation fee on my contract. Spoke to Charmain Tshabalala, told me cancellation amount will only reflect end of Nov however she can make my contract to be on Prepaid. I kept on asking her about cost implications, she told me my contract won't change. 27 Nov I requested cancellation fee from AltechAutopage online but was offline, but received email on the 29Nov cancellation fee of R1439.99. I then phoned the call center requesting banking details but was told that the amount has changed to R2020 because my contract migrated to Topup. I went to Southgate Mall and was rudely told to go to AltechAutopage Head office by Bongani because Charmain resigned and no one knows what has happened to my account. I requested the Itemised Billing, told me he doesn't have access to retrieve it, I phoned Customer care line and they told me to get it from the nearest outlet. I'm sitting with a bill that No one can explain onhow it got there, worse, my contract was changed without my consent. I feel my rights to information and transparency were violated by AltechAutopage consultants and can't find answers.