Available Offline and Internet On

[Arcticfox99]

Hi,

I'm sure this question must have been asked before and the answer should be obvious but ill ask anyway.

If I have some playlists set as Available Offline on my iPhone and I'm on my 3G network, will spofity use the offline version of the songs or will it try to to use my 3G?

Do I need to force offline mode on my phone to make spotify use my offline music or will it just do it for me?

I know the answer seem obvious. (if its available offline it should just use it rather than nuke my 3G data) but better safe than sorry.

Thanks

Arcticfox99