They deducted money from my account and I didn't received any email or confirmation regarding the booking

They deducted money from my account and I didn't received any email or confirmation regarding the booking. I called the hotel they said Booking.com must refund me, I've been sending emails to them asking for a refund but no response from them. I'm really frustrated now, and I have proof from the bank that they deducted R1 400 I