I paid a contractor w/ a credit card over the phone. I wanted a receipt, gave him an email. He uses Square, they linked that CC and email, now every purchase w/ that CC at a Square kiosk generates an email receipt. I have no account, how do I opt out/unlink? #privacy
@mikemac They followed up on twitter--turns out if you view the *HTML* email you can see a "not my receipt?" link at the bottom you can use to opt-out.