Useless service providers!!

Vodacom made us drive to them 4 times! We wanted to upgrade, the first time there was a problem with the system, the second time they told us we could only upgrade nie next day 31 oct) the third time the same storie you can only upgrade the 1 november. When went back again 1st november just for them to tell us that we can still not upgrade!! We had to drive 30km everyday for this!!!! And then I called them to cancell to contract with them, they told me to call the cancellations department. So I called the cancellations department 6 times!! Only for me to be on hold for minimum 18 minutes at a time. I am very cross with them. Then i called the store again to ask if i could come in and cancell the policy and they told me I have to go another 50km to vodaworld as they can only do cancellations there??? How does that work????????