[getsaf]

I'm guessing they are using Visa's lesser known Money Transfer features. This stuff has been around for a little while. The company I work for recently started supporting this for insurance company payouts to customers.

https://usa.visamoneytransfer.com/Visa/Web/Help/FAQ

BTW, you can chargeback stuff on your debit card just like you can with your credit card. Both are save and typically 100% covered by the credit card company that issued the card.

I'm still amazed that people don't understand how disposable credit card numbers are. The worst thing thing you really risk when giving out your credit card is the hassle of changing any auto-payments you had attached to that card in the off-chance that your card is compromised. Debit cards are a little different in that your funds may be held for a couple of weeks under certain circumstances so that could suck but that's not often the case. /rant