Emails from the cash or box teams will only link to square.com, squareup.com, cash. app or cash.me, cash.app/help. Although, If the email contains a link to another website, Square will not send it. cash. application/assistance or through the voice connection provided to the cash app support customer in the Cash application. However, Cash Assistance will never ask you for a login code, PIN code, social security number (SSN), and will never ask you to send a payment, make a purchase, or download any remote access application. Or do a "test" of any transaction. However, you need to visit our website for more information.