No response from Booking.com

I booked for accommodation via booking.com for a long weekend of 20th Sep to 23 Sep. The property owner sent me a cancellation a week before my booking. Apparently they are undergoing some renovations. I have reached out to both booking.com and the property owner to request my refund and none of them had responded to me. I made them aware that I have managed to secure another booking and needed my refund ASAP. The booking still shows active … I do not want to get there and only to find that my booking was cancelled or get there and find two bookings. Since they are the ones who cancelled my booking, I want my refund by end of the week.