Loyal client treated like trash by vodacom staff

I am highly disappointed in vodacom service. I am a 17 year loyal client and I have 3 cellphone contracts with vodacom I got call center calling me everyday cause 2 of my contracts are due for upgrade. I said I will wait till shops open then go in and do it . To my disgust I go to vodacom canal walk I give all my details to upgrade my 2 year old Samsung S9+ and A7. The S9 is my business phone so I wanted the S20+ and the A7 is my daughter phone it was her birthday so I did the upgrade for her to the new LG. So while sitting there in vodacom store the guy do the lg upgrade and give me the phone I sign and everything he tells me I cant get the S20+ upgrade cause I'm under dept review I WAS SHOCKED AND EMBARRASSED OMG....... I been 17 year loyal contract client never missed a monthly payment with 3 contracts that I upgrade every 2 years and they tell me this ****. And had to walk on that shop with only the lg phone . A few days later the guy at vodacom caled me saying I can do another lg upgrade instead of the S20 are you guys serious .I'm very sorry I dont recommended anyone taking out contracts at vodacom if they treat loyal clients like this no ways my husband said I must cancel all 3 contracts and move over to a better network that value there loyal clients