On the left you'll see two Christmas scenes. See if you can spot the differences between them, and count how many differences you spot.
Once you've got the answer, select the number of differences at the bottom, then complete and submit your details on the competition entry form below.
Please note, only current members are eligible to enter the competition. Not a member? Download an application form and join today!
If you would prefer, you can download a printable version instead.