vodacom online upgrades offer **** deals

Online upgrade done on 12 nov 2018...Confrmation with reference received and even RAM waybill number recieved...only to find out ( after 6 weeks) that they do not have stock of the phone and will not be getting any stock of the phone... after making use of media platform (facebook) i received feedback and a phonecall saying that the upgrade was cancelled with reason no stock...i was told that they would create the deal for me again. I still have the recording of the call ) it did not happen. I received an email whereby i was offered a complete different deal with a higher monthly premium and much lower value phone. I responded that i cannot accept the new deal and should be offered a similar deal than what i signed up for with the same monthly premium and a phone with similar specs than the online deal that i have agreed to online on 12 nov 2018. It seems like the deal never exisisted and I cannot believe that in the whole of South Africa Vodacom are not able to get a cat s60 , Why offer it on the website and promote deals and promises that cannot be honoured. In a few days it will be 3 months and still nothing from vodacom.