I Need Funds Reversed Now Urgently

I attempted to make a reservation via Booking.com at Mandela Rhodes Luxury Apartments, but your system failed to create or confirm the booking. Because of this, I do not have a confirmation number. However, my Standard Bank debit card shows an outstanding card authorisation for 4,991 ZAR dated 25 September linked to this failed Booking.com transaction. Your email confirms that payment was taken or attempted, but the booking could not be confirmed. As a result, 4,991 ZAR is still blocked on my card and I cannot use these funds to book alternative accommodation. This situation is causing me serious inconvenience and urgency, as I need to secure another place to stay. I request that you immediately release the outstanding card authorisation of 4,991 ZAR on my Standard Bank card, or urgently provide clear written confirmation to my bank so that they can remove the hold without delay. I also ask that you resolve this without asking for a confirmation number, as none was ever created for this failed booking attempt.