Vodacom cancellations are impossible

My vodacom contract is ending at the end of this month and I have been trying to cancel this contract since November. Everytime I call vodacom not only do they take forever to answer but they never want to cancel my contract. All they wanna do is sell my new stuff even though I tell them the person using this contract has passed away. If I wanted to upgrade I would have phone them. When I finally get my point across they Either disconnect while I’m talking or they tell me to call the following week. Today I phoned again and told the guy I want to cancel, after 10mins of continuously telling him I want to cancel he got the point and mentioned a other line of mine due for an upgrade. He then continued to put me on hold for 5 mins and while waiting I got an sms from vodacom about a quote being processed ? Sms as follows:

Dear Anrich Snyman your quotation has been processed ***************. Use the order number ***************when contacting Vodacom Customer Care on 082111 for further enquiries.

Who gave him the right to just go getting quotes etc. I waited to confront him but just like the rest he put the phone down while I was holding. I’m tired of this. Taking your money yeah sure takes 2 sec to open contract, but when cancelling they have a issue. I have been taking notes of the times and dates and if they decide not to cancel I will take this further. Absolutely terrible service from vodacom !!! Do not consider them for a contract.