Bad customer service

I went to ackermans jhb Central to buy my school uniform and a DStv decoder, went to the till I was assisted by sindiswa a cashier she was good and she scanned all the items I came with and after that I asked for a DStv decoder then she asked the manager or supervisor by the name of mhlengi was busy chat with some other guys there laughing. And the lady told us the decoder is coming we waited for about 45 minutes, mhlengi was still standing there and chatting, then I asked the lady after wards, she told him again then this guys started arguing with the cashier. And he said the decoder is coming and then he moved to serve other customers, we waited again for about 10 minutes and I asked mhlengi where is the decoder he said it's still coming then he went to the back for quite sometime and a lady came out with the decoder he never even apologized. I also asked about the rewards card the never even bothered to explain. That's unexpectable. I don't think they appreciate me as a customer.