Apple Istore - Unpleasant Customer Service Experience

I visited the Apple Istore at Canal Walk Shopping Centre on Thursday 05th Aug-21 to upgrade my existing data contract based on an Istore Promo forwarded to me on Wednesday 04th Aug-21. My experience started when I enquired with the store assistant with an upgrade my Vodacom contract based on a Istore Promo that was forward to me via email a day before. The Female Store assistant informed me that the in store Vodacom Consultant will assist me and went to get him from the back office. The Female Store returned to inform that he is busy in the back office, but informed that he will be with me shortly. 20 minutes later and still waiting for the Istore Vodacom Consultant, I approached the respective Female assistant to ask her how much longer will the Vodacom Consultant be. She returned to inform that he is very busy and if I could return the following day. I then explained to her that I am in store for the Ipad Pro Promo, she then informed that she will assist me. After clarifying with me on the promo she reverted to the Vodacom Consultant in the back office, and returned to inform that Istore is out of stock on the product. I then requested to check if another branch might possibly have one, she checked on their systems but reverted to inform that all of their Istores are out of stock (with a promo that’s a day old?), the female assistance then suggested I go to Vodacom for assistance. This was the final straw for me after waiting almost half an hour and now being informed of no stock with a day old promo. I then requested to see the Store Manager. The Store Manager came to me to enquire about my dissatisfaction. Upon explaining and stating the above, he informed that he will enquire with another province, which he duly did and clarified that there is one left in Durban KZN and he’ll order it for me and revert when it arrives (he also forward me an email that afternoon to confirm same). Today Morning 11th Aug-21 I received an email from the store manager informing that promo was based on the previous generation Ipad Pro and he will try to possibly find me one, otherwise I need to consider paying extra for the new generation one. I am unsure if this the meaning “Apple Istores” meaning of customer centricity, but for me it’s been an unpleasant experience to date with Apple Istore, and find it hard to believe that “Apple” would leverage an experience such as this with their existing customer/s.