You can pay for many things around here using your phone, but machines like these will need cash!

[Of course the mall have many ATMs for that very reason, so they don't have to walk far to find one.]

Here we are! Check your bank application on your phone and the text messages from the city; in combination you should have your bank account number and PIN.

[Talk about a crash course... but he can't very well ask her to give him such confidential information, so she'll need to find it herself!]