Misrepresentation of promotion

On 17 June 2023 I went to Cell C Clearwater to renew my contract. I wanted to upgrade to a Samsung but was advised to take an OPPO Reno 8 as it was on promotion and I will get a rugby jersey and a second phone valued at R7000 within 30 days. Round about the 11 July 2023, I received a second set of ear buzz. I contacted the consultant who referred the matter to OPPO. Someone from OPPO called and said she does not have all the facts and will call back. She never did, I contacted the Cell C consultant again and I spoke to an OPPO consultant who was going to refer the matter to a senior manager as the Oppo consultant who assisted left. She also never reverted back to me. On 28 July 2023 I escalated the issue to the manager of the branch who advised thar ge escalated the matter to OPPO. On the same day I was advised by the CellC consultant that OPPO apologises for the inconvenience, the best they can do is offer me a free gift. I informed the CellC consultant that I have escalated the matter to the branch manager. I have followed up on two occasions with the branch manager but he void not give ne answer. I have been with Cell C fir nany years and this is the worst service received