I am going to travel to Cambodia. I plan to put my phone on airplane mode and turn wifi on so that I can use whatsapp for messaging. I expect to incur no fees from koodo while my phone is in airplane mode. If I have an emergency and need to turn off airplane mode so that I can make a phone call or send a text, I realize that all text messages that will have been sent to me while my phone was disabled would all come flooding in at once. Would I incur fees for incoming texts when I turn my phone on while abroad? If I do not buy a prepaid international add-on, would incoming texts still be free of charge?