Don't care about there customer service

I order on the app 29/08/2024 for groceries from pick and pay the order didn't went true everything still in basket but my money went off my account report it to capitec and call them they said the order dint go true but can't give me an Authorization letter because they don't do it no I loss almost R600 and no one can explain I show them it's of hw said yes they had an glitch around 4 but nothing has been transfer back to my account or received the groceries