Vodacom unable to fulfill upgrade order - Bad customer service.

I've initially upgraded my contract on the 3rd of Feb 2020 via the web site. On the 2nd of Match 2020 after querying the delivery of my new handset I was informed that the handset was discontinued and my order was canceled. I then re-app**** for a new upgrade on a new handset.

Today I was contacted to confirm the upgrade and I then requested Vodacom to confirm the availability of the handset to be told again that there is no stock and that my upgrade is placed on backorder. What guarantee will Vodacom give that this time around my order will not be canceled again? Seen that I wasn't informed the previous time around that my upgrade order was canceled.