Booking.Com is extremely ************* with no customer service

Extremely bad customer service. Amounts were just taken out of my credit card without my permission. Over charge of R4 920 still not refunded. I had to report *****, as there is no assistance from Booking.com and the hotel Pili Pili Sunrise sat they checking into it but still no refund for over charge. Booking.com is by far the worst, with no communication. I had to call over and over and get documents from my bank to show over charge and STILL NOTHING!!!