Cell C does not want to keep customers!

My cell phone contract expires next month. Usually I get a call from a cell representative asking if I want to upgrade. I contacted cellc to ask if I can get the August WiFi promotion as an upgrade. The consultant told me i can get the deal but need to wait for October to start making use of the service but I need to go on a open line with my current contract intill it expires. I'm not interested in getting an open line I was told I can get it capped on my contract value- what the heck must I do with 100mb for a month. I want the contract without havin to get an open line other wise accept this as my notice of cancellation