Credit Card Not Working - No Support

My credit card is giving me a "Not Authorized" error when I try to use it. I contacted Capitec on their Whatsapp channel and after selecting the option to speak to an agent received a message that I would be contacted shortly. 70 minutes later I got a response from an agent. I greeted the agent 2 minutes later and said what my problem was. 3 minutes later I was told that the call will be closed because they haven't received a response from me (it looked like it was cut and pasted because all the line justification was wrong)

This is obviously not the sort of service you expect from a bank that supposedly has fancy new technology.