Overcharged for months

I have never been more furious in my life. I app**** for a smart plan 100 S4 mini for R349 from Telkom. So, it turned out that my contract had expired after 24 month and therefore they decided that because I was outside of my contract period they could bill me even more than what I had signed for. From R349 my subscription increased to R448. I have contacted their call Centre numerous times but get put on hold forever without the consultant getting back to me. I requested for the accounts department to get back to me but nothing. <br> <br> I had also app**** for a Tab 3 7 inch which contract has also come to an end this month. I went into the store to request the cancellation and was advised that it does require 30 days notice. I went into the store 35 days before there expiration date of my contract. When I called into the call center today, I was advised that there is no request for a cancelation on the system and as a result my contract which usually costs R169 now costs R359.49. <br> <br> This is absolutely appalling!!! How do you people go around robbing and cheating people out of their hard <br> earned Cash. Please get someone to refund me and cancel the relevant contract ASAP!!!