Stay cancellation/rescheduling due to Covid19

I tried to sent email, calls to Booking.com/the Heriot Apartment(Cape Town) to postpone my trip due to cancellation of Cape Town International Jazz Festival(Coronavirus) No access to anyone to assist me. On email, booking.com said i have to contact The Heriot - City Apartments and They said i have to contact Booking.com. No one is prepared to take responsibility of my funds that i paid. below is the email message that i received from booking.com. booking.com Confirmation number: *** Hi,

Total price of the reservation will be charged.

Kind Regards The Happy Home Hi Paulina,

Unfortunately we're unable to postpone the booking. Check-in: Thu 26 Mar 2020

Check-out: Mon 30 Mar 2020

Please assist so that i should not lose my funds