Pushed from Pillar to post after unfairly charged for a room that's never used

I was unfairly charged by Booking.com for a room that's never going to be at Preskil Island resort Mauritius. I sent a message to booking. Com on 27 August 24 and again on 30 August 24 requesting for one room to be canceled. I have spoken to Damien at Preskil Island resort since Monday when I arrived. I am being pushed from Pillar to post. Booking.com says they communicating with Preskil, preskil says they waiting on reservations. have not received anything positive, I check out today and I'm afraid I'll never be refunded for a sea view room that was never needed and never used during my stay. I'm starting to lose confidence in Booking.com and Preskil Island resort. These company's enrich themselves *********ly with our hard earned money.