Very bad and disfactory service from Vodacom (Vaal in Mall)

To whom it may concern I went to the Vodacom shop (Vaal in mall) shop in Vanderbijlpark in the end of January 2020. I was assissted by the Vodacom consultant Maria. I was in search of the IPhone 11 at the package of R549.00 over 36 months. The phone was not in stock which was understandable. She took down my details and confirmed with me that when they received the stock that it will be at the same package deal. During the month of February I contact Vodacom in Vaal several times and visited them as well in store. I confirmed with Maria that there will be no price difference when the phone eventually arrive. And she confirmed and with her own words said "because the phone was out of stock they will present it at the same package". On 26/02/2020 I visited the shop again, and she said to me that she did receive the stock just not the colour that I requested, I said its fine, is it at the same rate? And again she confirm it. Later during the day when I went to fetch the phone, Maria suddenly changed her story and said she cant remember anything that we discussed during the month, and even our discussion on the same morning. Because this phone was promised to my son, I had no other choice but to take the IPhone 11 on a more expensive contract. I asked her to call the manager and she refused to call him/her But I'm not happy about the service of Vodacom that I received. Especially from Maria who denied everything that was discussed. If I have no satisfactory outcome out of this complaint, I will go to the ombudsman, and I will write a review to our local news paper. Vodacom can check my history, I've got three contracts on my name for years now . But if this is the kind of service that they are providing lately, I will end my contract and rather move to another service provider, and believe me I will spread the word. I can be contacted on *** or email ***. The contact number of the Vodacom shop is ***