Thank you Ben, you were certainly very helpful!
If I can pick your brain a little further, I do have another few questions. I excitingly received my confirmation letter through the post today, among these was a "Passport Information" sheet. It says "Additional costs may be payable if you do not return the form at least 10 weeks before departure." It then lists my personal details (Name and Date of Birth, both are correct) It then says "If the details are not correct, please correct or complete this form and return to the address below" - it then lists a section for me to fill with emergency contact details. My details are correct, but I can fill in the emergency contact details section. Do I need to fill that in and send it off?
Also, I need to get travel insurance for the trip. How do I go about getting Just You's travel insurance? Is there an email address and contact number I can use? Thanks for any help!