Will I have the same phone number/sim card when my iphone 5C is replaced?

Basically i dropped my iphone yesterday and the screen completely shattered. I pay an extra £10 a month for insurance with EE so i rang them up and they are sending a replacement phone which should arrive tomorrow, exactly the same. They told me to wipe the phone which i have done already. Will the replacement phone have a new sim card in it? Will they deactivate my old phone and reactivate the new one with my old number? Or will i have to start again with a new number and not have any of my contacts?

I did backup my phone and take a copy of my contacts before. I know you cant take sim cards out yourself unless you have one of those keys (which i dont), and even if i could put my old sim into the new phone, I've wiped the phone. Please someone help im worrying myself about it!

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