Black Friday Pay Monthly Contract Question

[Dangreenday182]

Hey Guys, 
Sorry i'm a bit of a No0b when it comes to Tech so i do apologise if this is a silly question.

Basically i'm out of contract with my current phone which i bought from the Mobiles Website i have seen a black friday deal that i want to take on a new phone that is on a different website.
I'm assuming that if i buy that it's simple to just have this replace my current contract (Which is now finished) even though it's going to be brought from a different website to my last phone.
Am i right in thinking that as long as the contract is still through o2 i wont have any problems ?

Hope this makes sense,
Thanks for any help in advance 

[MI5 · Accepted solution]

@Dangreenday182 

Yes, it's no problem. 

When you get the new contract, call customer service and ask them to migrate your number to it which will cancel the old contract immediately. 

Guide: How to find help & contact O2 

[Dangreenday182]

perfect thank you so much

[MI5]

You're welcome