Can I order iPhone 6s from EE if I'm under 18?

I wanted to order an iPhone 6s from EE, but when it showed date of birth, the least year was 1997. I'm 17 years old turning 18 next year. Would I be able to lie about my age and still get the iPhone. They said on the website the only thing I need to show to them is photo ID and it must be a passport or national ID card. Even though they said that they will look at my photo ID would they also check my date of birth as its 1998?

Yes, that is why they would be checking your ID.
Just get your parents or a sibling to do it for you and then pay them.

Yes, of course they will check your birthday, THAT IS WHY THEY WANT TO SEE YOUR ID.