Vodacom disappoints

I renewed two contracts online on the 19th of September online and they failed to deliver my handsets. I called them numerous times and spoke to the superiors with no luck. After I cancelled with online I went to a Vodashop with my cancellation numbers but they can't assist me because even though I have the cancellation numbers online didn't cancel on the system. After numerous emails and phone calls I still don't have any indication if I'm ever gona get my upgrades. What to do now? Vodashop can't override inline and online refuse to update the system ..... now I'm stuck .... maybe I should try a different service provider ??? Vodacom I've been with you many many years and I have 4 contracts with you .... you are a huge disappointment!!