Vodacom Abuse

I bought Samsung A80 at Vodacom on 02 November 2019 and already bought 3 screen guard for it since it was sent for repair on the 18/01/2020 and again on 3/02/2020 its currently rebooked for repair 18/02/2020. Reference no ***. I feel Vodacom is deliberately doing this to push screen guard sales as I am liable for buying screen guards at rate of R249.00 every time the claim it is repaired but not. Can someone please help stop this abuse of contract terms and conditions