Vodacom not giving deal as advertised

I had an issue when I took out my last contract in May and the ad said I will get a free charger with the Samsung S22 Ultra and then I never got the charger. Even after complaining they said I never mentioned the charger so I didn't get it. 2 weeks ago someone from vodacom called and asked if I'm still happy with them and I said no, I'm going to pay my 2 contracts done and cancel them. I told him the whole story and he agreed that's not right and I shouldn't have to mention that the ad said I get a free charger in order to get what was advertised and he will investigate and get back to me. No word back from him again just like everyone else at Vodacom. I had to spend more money out of my pocket to buy a charger for a phone that's already so expensive every month and was advertised with a charger. Horrible service.