Unfortunately this
is not possible. All the apartments require credit card details, either as
payment or as a form of guarantee, in order for you to make a reservation. If
you do not cancel the reservation within the cancellation notice period, and
you do not arrive at the apartment, the apartment is entitled to charge a
cancellation fee to the credit card. (Please check individual apartments' web
pages for details of cancellation charges, under the sub-heading 'Terms and
Conditions').