Bank Card Cancelled without notice

I am extremely disappointed on the service I'm getting from FNB. I was doing shopping on the 26th of April 2024 and when it was time to pay with the FNB card I kept on getting 'Account is not authorized'. This was the first time receiving such a message. So quickly logged in to FNB online profile and then realized that the card was cancelled. I then contacted FNB via Secure Chat only to be told that my Fusion Card is cancelled because I do not have a facility with it. The card was abruptly cancelled without a notice of cancellation or even of letting me know that a new bank card has been ordered. I tried to ask simple questions like when did the facility ceased to exist on the account. I did not get answers. This is the second time I'm complaining about this bank. I raised a complaint on the 22 April 2024 for Business Bank transaction that was reversed, but the money was inaccessible for over 24 hours.