I know there are various phone plans in Portugal. But, specifically, I expect/hope my US phone carrier (T-Mobile) will work just fine. More specifically, I want to make sure I can log-in to bank, investment organization, Social Security ... maybe retirement. Because so many/most organizations, public or private, when they want 2-factor verification, it'll 'work' same and easily overseas and will get 6 number code at text to put in at my various online sites?