Hi. I’m sorry i can’t type in Korean right now. I’ll be going to Korea for 3 months this summer. Can you recommend what I can do about cell phone during my stay. Is renting cell phone expensive? I have a iPhone. Also, where should I get my currency exchange. Is it better to get it here at a bank or exchange at the airport once I arrive? Thank you so much in advance. I really appreciate your help. Have a good day.