I work in Afghanistan and upgraded to a Samsung Galaxy S4 Active, but my soon to be ex-wife decided to steal the phone for herself rather than send it to me. I have my old Samsung Evergreen with the full size SIM card in it. I need to know how I can purchase a microsim for my S4 from Afghanistan. The only instruction I can find on the ATT site is to go to the ATT store, but I have no desire to go to Kabul and I doubt there is an ATT store there anyway. Can I purchase a microsim from the ATT online site? Can I buy it in Dubai? I will be passing through there shortly. Can I cut down my old full sized SIM and use it? Any assistance will be greatly appreciated. Thank you.