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I have an unlocked iphone that I’m using in the country of Azerbaijan with a prepaid sim card.. Every few minutes I get a message on my phone that indicates new charges for internet use even though I’m not actually on the internet. I’m guessing it has something to do with the sim card, a feature that needs to be disabled or the service provider (Azercell). Has anyone ever had this problem or knows how to fix it?

I need wireless internet in my apartment in Queens, NY, and I also want to buy a smartphone with wifi so I can use the same service on the road. I don’t have a lot of money to spend on this but speed and customer service are important.