Did someone ***** my accessories or does Cell C advertise falsely?

I went in to Cell C Polokwane without knowing which phone to select, the consultant handed me a brochure and convinced me to take a Galaxy A70. In the Contracts catalogue she showed me the deal, how much I would pay and what I would receive. I was supposed to receive a Bluetooth earphone set and a powerbank but she said that I would need to come back the next week for the accessories as they do not have stock. Because I live in Pretoria, I sent a friend twice to collect and they said there's no stock and that the deal was expired. I phoned the branch 3 times to speak to the lady, even phoned her on her personal phone (she told me to phone her when I come to collect my accessories) and still nothing.... It has now been 4 months. I have spoken to everyone in that branch, they say they'll phone me back after speaking to the manager. I have sent about 4 emails to complaints and customer care... no avail. I have phoned cell c... nothing. I have lodged complaints on the app... nothing.

I want to cancell my contract as I'm paying more than I was supposed to, I'm getting poor service.. I'm being conned with accessories and generally just disgusted.