Hey @Nav444 ,
The brilliant thing about EE is (unlike my previous provider), you can't end up with bill shock when roaming.
Firstly, because even if you land and have mobile data roaming on, it'll pick up signal but won't actually work until you buy an add-on.
On my most recent trip, I got the below welcome message (identical in each of the countries) that encourages you to go to the add-on link for them to show you what's available.
I've included a couple of screenshots, with your data roaming on, you can access the page to buy bolt ons for calls, texts and data.
Would be worth checking it out from Pakistan and seeing what options you're presented with. There's a long list to scroll through.
