Preferably using small words 
My phone contract (with 3) comes to an end on Friday. I am in DESPERATE need of a new phone. Explored upgrade options a few weeks ago and the deals on 3 were not great. Found a good deal on EE that I think I will go for.
I can’t work out the order of events here. Firstly do I need to give notice even though the contract is up? Because with Christmas I could do without paying two bills in December. Do I order my new phone now or wait till 3 contract is terminated? How do I keep my number?
I feel a tube for asking but I’ve never done this before...