So my daughter is heading to Greece (Crete actually) for 6 weeks and then traveling for 2 weeks back through Europe to London before returning home. She has a Samsung Galaxy. Am I correct in assuming that if we unlock the phone (which she has had since last July) that she can purchase a SIM card in Greece, pop it in her phone and it will work? Also if she takes her Koodo SIM card out and leaves it at home to avoid roaming fees (and continues to pay her monthly bill
) she can use her phone on WIFI for facebook and internet browsing?