Booking.Com unscheduled payment withdrawals

I made 8 bookings with Booking.com on 4 June 2023. I noted that I wished to pay later at the establishments. I received confirmations for all the bookings. On 5 June 4 payments were withdrawn from my bank account and on 19 June a further booking was withdrawn. This is totally unacceptable. I feel this is false advertising on Booking.Com's part. I doubt they would be prepared to pay any bank charges incurred as a result of these unscheduled payments. I would like to alert unsuspecting future customers to this practice. Brian Koning