Terrible service with inexperienced people

I phoned in on Monday the 23rd of September to upgrade my contract.. Today is the 1st of October no response yet from vodacom. I phone the call centre's they are useless telling me I should wait for a call it's more then a week now if I knew it I would have gone to another service provider.. This is ridiculous.. I phoned now again they tell me it's our girl delivery I phone the ram and skynet delivery companies to find out the tracking number doesn't exist.