Terrible online upgrade experience

<p>I submitted a request to upgrade my contract online on 10/7/2016, and immediately received an sms that the contract has been extended. Then I received and sms saying that the device is out of stock and an update will follow soon. No update yet on 18/7 so I phoned the number in the sms. The agend just cancelled my upgrade without my permission and tried to sell me a more expensive contract. I app**** online again on 18/7 for the same contract, and again receive the same sms's. I phoned on 19/7 and via email it was confirmed that the phone has been discontinued, but no info on what the impact is on me... I phoned the call centre on 20/7 where they told me that I've been blocked and a manager will still call me on the same day. No phonecall received to date. I phoned again on 21/7 and explained the whole story, the agent transferred me to the online department and no one answered the phone for the next 10 minutes. Now I'm wondering whether Vodacom even wants to assist their loyal customers? I'm wondering whether I should move to another network or just move to prepaid? Vodacom is very quick to renew the contract and get the higher monthly payments, but so far I have no luck with anyone wanting to assist me with info on my device or contract.</p>