Booking.com complaint: flight pricing scam

I booked a flight from Dallas to Los Angeles on booking.com I was given a ation number and was told pending ation. 3 days later, with no ation email, I called customer service. customer service initially told me the booking was canceled because the payment was not received.
I contacted my bank, i was told there was no attempt from booking.com to charge anything. I called booking.com customer service again, and I was told it could be a problem from their end. i was asked to book again. Now, the price of this flight is almost doubled. booking.com customer service agent was extremely rude. n help, they held my booking and now I had to pay them more money if i book again. This sound like a scam to get you to pay more. customer service unprofessional untrained, trying to blam the customer. till now the site say that m` booking is pending which is unusall for payment denial.