if you can get a free childs ap when you buy an adults , we are going 6th December, I think the offer finishes November? Was hoping there would be another offer?!
They've already extended this offer a couple of times so fingers crossed they will extend it again so it will run right until the end of the extended celebrations.
I'm not sure how close to the final date they announce it, it might be worth emailing them to ask if they are planning to extend it.