Default Weird internet problem I'm getting in Europe.

I'm using a NA nexus 5 in Europe on Bosnian network m:tel. I'm currently using a pay as you go number and when you enter the sim card a new icon on your phone appears allowing you to change some sim settings, so I purchased 250mb internet for 1 week. But my chrome browsing or social media does not work, bbm works on mobile network and Instagram will update itself every once in a while and notify me when someone follows me, bit refresh manually never works like it times out or something, torrents works flawlessly though I can download perfectly fine using the mobile network but for some reason can't browse the internet or manually refresh social media and such... I have no idea what the problem is, anyone?

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