Vodacom Shop Zevenwacht Mall bad service, horrible manager

I spend 3k on some s24 ultra accessories at this store, including a glass screen protector, after telling me about the 6 months warranty on everything, i asked if it included the screen protector and he says they don't do refunds on them but they can do some store credit, the reason i asked because he installed it in the store and it didn't work, the touch screen worked but the fingerprint scanner printer didn't, I thought id give it a few days maybe it needs to settle, it didn't, i took it back, manager makes me wait 45 mins for him, and then says he doesn't know what the consultant meant by store credit because they don't do that, because i was already frustrated i left... i didn't wanna argue with him because i knew i was gonna explode, they were eager enough to take my cash but cant honor simple warranties