“Students at some for-profit career schools could find themselves paying hefty interest charges when using a credit line offered by PayPal, a group of consumer watchdog groups warned this week. More than 150 small career schools and technical programs, most of which aren’t accredited and are loosely regulated, offer students the option to pay tuition using PayPal Credit, a digital credit line marketed by PayPal Holdings and issued by Synchrony Bank, the groups found.”