BREACH OF MY PERSONAL INFO - POPI ACT BREACHED

We booked a weekend away via Booking.com. Like always, you need to pay and they ask for the banking details with my CVV code at the back of your card. as I arrived at my booked venue, I found that there has been no payment made but instead Booking.Com has mailed the Hotel all my banking details as well as the CVV number. Nobody gave Booking.Com permission to share my banking details with any third party. I'll never use Booking.Com ever again.