The cancellable and non-cancellable conditions read:

Prepayment:
The total price of the reservation will be charged on the day of booking and is non-refundable

Prepayment:
No deposit will be charged. You have now confirmed and guaranteed your booking by credit card. All payments are to be made at the hotel during your stay, unless otherwise stated in the hotel policies or in the room conditions. Please note that your credit card may be pre-authorised prior to your arrival.

I am not doing anything except wait.
There are no pendings on my credit card.
If on/after Friday $1200 is charged instead of $70,
this may be a tiny bit of work, disputing with credit card company.