Hi LeeC
There is a certain point where we have to give back unsold flight seats and hotel rooms. From this date, a holiday goes on “request”. The website defaults to two places (until there is it 0/1 place left) as we can still take bookings but elements of the holiday need to be confirmed and there may be a supplementary charge. The £100 that you would have been asked to pay is effectively a deposit. Once we have confirmed the flight and hotel room, a holiday advisor would call you back with a quote for the holiday. If you are happy with the price you would be asked to pay the remaining balance, if there are supplements and these are too high, you can choose not to confirm your place on the holiday and the £100 will be returned to you.
I hope this information helps clarify things a little more,
Kindest regards,
Julia