An Advertiser has 48 hours to respond to a booking request before it is automatically cancelled. This is to ensure that the Traveller doesn't spend a long time waiting to find out if they can secure a rental.
Likewise, once a booking request has been accepted the traveller has 72 hours to confirm it by making a payment, otherwise it is automatically cancelled. This is to ensure that advertisers don't lose out on bookings and income.
We recommend sending out a few requests at a time so you are sure to get one accepted!