VODACOM UNHELPFULLNESS

When it was close to the time that my contract expire i Phones Vodacom to make sure what i have to do to get this done smoothy. In June i phoned vodacom as per instructions and spoke to gentelman to cancell this contract. they want me to buy a computer but i decline it. this should have stoped june according to gentelman. In July i saw that it was stll not cancelled and phone again where i spoke to a lady. She said she was very sorry that they did not cancel it and that she would correct this to be cancelled now - she would hand the document is. I told her i would pay the rest of the account in full but take the ampunt that is to be cancelled off. she told me it was fine. I got a message on my phone to say that i am in arrears on my phone bill. I phoned again - I went through 4 people to get to the second last group to told me they can only cancel if i pay the account - the more i told her that the account is up to date - this is the cancelled amount that was never done - she keep on sending me to the collections department - that wonderfull department - after you spend hours on the phone to do all the machine is asking - put the phone down in my ears - NOT ONCE BUT TWICE!!!!. I AM A LOYAL CUSTOMER OF VODACOM ALL THESE YEARS AND I HAVE MY CONTRACT NOW FOR ALMOST 25 YEARS. IS THIS HOW THEY TREAT LOYAL CUSTOMERS!!! all they had to do is had the papers in when it was cancelled - but now i have to pay for the staff lazyness and fault??????