Mtn sim card- Poor customer service and lack of accountability

I've never ever had a problem with Mtn up until recently. I went to Mtn Fleurdal Mall in Bloemfontein and was assisted by Pieter Voges on 17/01/2025 to do an upgrade and was advised that I may take the 30gig data only plan for R189.Pieter advised that I'll be allocated on 12/03/2025, however I did not get this. He actually made a new application of a data only contract and did not even give me a sim card.So on the 12 of March Pieter advised that I should do a sim swap as my sim was too old to accept an upgrade,mind you I've never had any problems or reasons to do a sim swap in the past.I listened to him but I decided to do some research of my own. Long story short Pieter issued me with a new sim card on the system but failed to give it to me physically in January..I feel that he made a new sim instead of an upgrade to purely give me a new product, probably to his benefit..I was informed that the upgrade was only done now on 12 March when I went in store to enquire about my allocation..I was told that after the sim swap I would get my allocation within 24hours,till this day,no allocation has been loaded and no one has done a follow up..I called the Mtn shop and asked to speak to the manager or team leader,she asked that we speak via WhatsApp to further investigate the matter,but she just treated me like another annoying customer because she has not bothered to follow up with me..To me this is pure misrepresentation and deception..I need this mess sorted out but they are dodging bullets and I'm paying the price