Just had confirmation that it is still possible to get an urgent specific issues hearing for a holiday at the moment. It might not be a 48 hour hearing, but will happen before the holiday dates. Advice is to apply as soon as you know the holiday is going to be prevented. So if your ex is suddenly saying no you can't take the kids, when you have a holiday booked and paid for, then apply. Don't wait till the last minute. You need to attach confirmation of your booking to the application and any correspondence/orders that show those dates were agreed (or ordered) previously. Likewise if the ex is refusing to hand over passports. If it's a passport issue you could also apply to vary on the same application and ask for the order to be amended to say passports must be handed over 21 days before a booked holiday (if your order doesn't already say that).