Simply pop your letter addressed to 'Father Christmas, North Pole, RE1N DR1' in the Santa Mail Box at Envoy House reception (upstairs), including your full name and return address, and we'll forward it on to Santa who will send you a reply as soon as he can with a little 'elp from his elves.
Make sure you get your letter in the box by 12 noon on Saturday 21st December to avoid disappointment, and...
Don't forget to mention your full name and address so Father Christmas can send a reply in the mail!