APPALLING SERVICE FROM DISCOVERY BANK

Most appalling service ever. Since receiving my new credit card from Discovery Bank I have been unable to use it for any online purchases being informed that the card is invalid. I have tried to register on the Discovery Banking App only to be informed that I do not have a bank account. I have tried to log on to Discovery Online Bank but could not succeed. Changed my password and had confirmation that this was done successfully yet I am unable to access the portal. I have tried to cancel my credit card telephonically and received an email directing me to the online bank portal but.......yes you guessed it, I cannot access the portal. I phoned again and had to explain the whole process to a new consultant and after 25min on the line I was put on hold.......and you guessed it....disconnected. How did these people even get a banking license?