Booking.com not refunding me after cancelled reservation

I made a reservation on Booking.com on 11 August 2018, using my credit card. My booking got cancelled by the owner of Outeniquabosch Lodge. (could not met our demands). I requested my refund on Monday, 13 August 2018 via booking.com. I also contacted the owner of Outeniquabosch Lodge to release my refund on her side. She claimed that my refund is not reflecting on her side. I have made numerous efforts to contact booking.com for my refund, however they are not replying to my messages nor do they bother to contact me. Card Division also claimed that the deposit has been released on my side.