Unwilling to assist with booking problem

So I made a booking vir Booking.com to stay at Prince Edward Mansions over the period of the Cape Town Sevens (Peak period). The option was with free cancellation and thus no deposit was required until 1 month before arrival. Credit card details all loaded onto Booking.com. I have other bookings that the payments all went through. Somewhere along the line my payment could not be processed by Prince Edward mansions and subsequently it got cancelled. Money in my bank account and credit card active.

So I phoned Lisa of Prince Edward mansions immediately when I got informed via email that my booking is cancelled (Saturday evening) Fair enough she does not answer. Got a reply the next morning that she will look into this. Phoned her over 10 times on Monday with no answer. I have send an sms and message via Booking.com still with no reply.

The issues could have started with Booking.com but Prince Edward Mansions was truly unwilling to assist. Or worse even - they cannot even answer a phone call.

So glad I did not have to stay at this place if the service is of this level even before my money is paid over.