Booking.com charge **** cancellation fees and refuse to pay my refund

I made a hotel booking through booking.com for court classique on the 25th June for occupation the 1st July, I opted to pay at the hotel and for booking.com not to debit my bank card, within an hour of booking they debited my account and charged me the full R1787.57. When queried this i got no reply, I then cancelled my booking on the 27th June as we got sick with the flu and asked them for a refund, they did not get back to me. I called the hotel they advised they have refunded the full amount to booking.com, till today I have no feedback from booking.com and my money has not been refunded, all i received was a msg on the app that they will process my refund but charge me a cancellation fee, for what they charging me a cancellation fee makes me wonder as i cancelled my booking away in advance and the hotel did not charge me a cancellation fee, bookng.com is robbing us and *****ing our money, I want a full refund of my money or I will get an attorney and ombudsman involved.