Service, what service?

I tried to cancel my contract as I'm going to be out of the country for the last month of my contract so why have it when I won't be able to use it. Firstly I went into a vodka on store to cancel but they say you can only do it by phoning a call center. (My first pet peeve) So I phone the cancellation number first they say they can only process cancellation requests on the 5th of the month, this after waiting for for 20min for someone to answer. Right so today I phone after waiting 40min someone picks up the phone and immediately puts down without saying anything! It just shows call ended. I then phone again, after 20min someone answers and I say I want to cancel contract she says she can't help. She works with upgrades only she will put me through to cancellations. I'm almost at the 60min music playing mark again and nothing!!!!! The little jingle they plays is about 30 seconds, the "please stay on the line at the end of the call to evaluate the level of service you receive" is about 5 seconds long. That's how bored I have been with hearing it for almost 100min today already. Pathetic. I have been with vodacom since 2001 but now I seriously think I will change to other service provider because this is unacceptable!!!!