Bad service

On Sunday I went to the Vodacom shop at Mall of Africa for an upgraded to the iPhone 8 Plus 256g. My friend and I was assisted by a gentlemen named Eric. I enquired about the iPhone which accordingly to the July booklet comes with a wireless charger. When asked about the charger he told us that the charger was out of stock. I told him that I’m willing to wait for the charger. He said he would let me know. Deal was drawn up and I signed the upgrade document. When I got home and checked my email , there was not reference to the wireless charger according to the dealsheet number. I phoned on Monday and spoke to a lady at the shops whom informed me that Eric was on training and that she would phone me back in 15 minutes as she had to look at the paperwork. She never did. At 16:25 I phoned again and was told she was busy on another line and that she would phone back. I’m still waiting.