I have used Booking.com numerous times previously but my last 2 bookings with them have been a nightmare. Whilst in Canada the hotel informed me that Booking.com had failed to pay for the room that we stayed in. Their customer service is terrible, I sent them 2 emails which they ignored so after 2 1/2 days I had to ring them after initially being fobbed off with the usual AI chat. The next booking I made I was overcharged by Booking.com on my credit card. Luckily I had taken a screen shot on their payment screen. I emailed customer services which was ignored again. When I finally got through to customer services they tried to fob me off with the extra charges being due to VAT. The screen shot clearly show "Full amount including all taxes & charges" but when you hit the pay button they added on another £15.75. Speaking to customer services is like pulling teeth. Whilst on the phone I sent her a screen shot from their payment screen clearly showing that I had been over charged. After waiting on the telephone for nearly an hour customer services then hung up on me.