No call back as promised

Hi firstly I would like to thank you Vodacom for the deal match they did for me but first to get it done was a a bid of a hassle and now after is was approved to get my new upgrade has even been worse. I have to phone all the time to follow-up if the phone that was ordered got delivered and then when they are going to send it to me. This is about a week now and still I don't have an idea if my phone is ag the couriers or not. That's after about 4 call centre agents promised me they will call me back with feedback. Then I had another number that I cancelled the contract at the start of September and I still got billed for the contract in October I phoned the cancellations department 2 weeks back and still no word from the after they promised they will get back to me. This is a big problem every one promises to get back but nothing happens.