False advertising

My mum and I had a terrible experience with Samsung since wanting to get the S22 ultra. Firstly, stores had no stock since April, when wanting to purchase the phone. We understood that the promo for the ear buds ended on 15 May (multiple sales agents confirmed this as well as Kgo from Samsung on 14 May) and I bought the phone on 13 May. Funny story, I was actually told by the Samsung agents in Telkom that I need to claim quickly before 15 May so I better get the phone but they had no stock LOL. I emailed the ref number to Samsung for the buds, which I didn't get a response to. When I called this past week, I understood that the ref had been rejected. Unfortunately, if staff is providing incorrect info, the liability sits with Samsung and not us.