Bad service from the bank as well the customer service agent

I did the application online regarding the cheque account as well as credit card,they both accounts been approved. they advise me that i must collect the cheque account to the nearest branch which i did. the consultant advice me that the credit card will be delivered by the courier company and they send me the terms and conditions which i sign and send it back to them,i received the call from them again to confirm the delivery address ,which i did. they promise me that the card its on its way and i will receive it within 24 hours,when i called after 24 hours the agent advise me that my card is been cancelled and when i ask the reason she didn't tell me. they did my credit scoring which affects me. now they call me and telling me about the cheque account that is on negative,i advice that agent,now that she don't know the reason of the cancellation of the credit card,she must cancel the cheque account as well. Absa is robbing people and they are not professional at all.