If both sender and receiver have US Visa/MC debit card, you can use square cash, fb messenger, etc. Square now charges a fee if you want it delivered instantly.

If both sender and receiver have US Visa/MC debit card, you can use square cash, fb messenger, etc. Square now charges a fee if you want it delivered instantly. IIRC, FB messenger still delivers instantly for free. I'm not sure though. And I understand in a situation like you described, you probably don't want to risk it.