phone sold more expensive at shop than advertised on vodacom website - Consumer Complaint for Vodacom - Head Office

Hi; I just purchased a Samsung A31 phone at the Vodacom shop at the waterfront in cape town for R 6999. Shortly after the purchase I found out that the same phone is advertised on the Vodacom website for R 5799. The staff/manager was not helpful and could have made me aware of this fact, when I pointed out that it is R 2000 more expensive compared to the neighbor shop Incredible connection. Please help me to sort this out and organize for the phone either to be fully refunded or the difference between the advertised price and the price sold to me to be refunded.