Hello Maui's, you need to cancel the reservation too. Marking up as invalid without cancellation will not stop collection payment for 11 nights, I hope you do that fast prior to disable the red button for cancellation
Maris, it is correct, otherwise, you will pay the commission of 11 nights to booking. Follow this no show marking by sending email to booking explaining the issue. As they may put the paid value (one night) as completed payment and charge you commission for this payment.
Maris, you said, the reservation was standard, it was not nonrefundable. You can't change the guest credit card. You are lucky you couldn't do that.