Booking .com should be booking .fail- they are failing me badly!

I booked a holiday for my family this coming weekend, well were so excited because it's the only weekend in the month we will be together I booked the Friday till Sunday but after making payment I saw it says Saturday till Monday which will be impossible for us as we work and my daughter has school.

Now I'm holding on the line for almost 10min to cancel this booking. I tried to cancel the booking now it tells me that I have to wait 7-12 days for my refund and I need that money to book for a holiday this weekend.

Nobody is helping only the lady at the property is very understanding booking .com still haven't contacted me this is frustrating. Booking no:*** Pin:8683