This is unacceptable, worst service ever!

I have been a vodacom customer for almost 20 years. Last month I upgraded to a double deal on the Samsung A22 ONLINE. Unfortenately I wasn't home on the day of delivery, but I phoned bought Vodacom and the courier company to make alternative arrangements. Still my package was returned to Vodacom and my upgrade cancelled without even so much as courtesy call. I phoned Vodacom several times since then and they are unable to give me the same deal, because the deal isn't available any longer. This is the worst service I have ever received from Vodacom and am considering moving all of my contract. Very disappointed customer, why can't I get the deal I upgraded on..?