I stayed at the Dolphin in 2009. I know, that's not recent. But the room came with a small fridge, like Disney rooms have. Dolphin offers an optional, chargeable daily service to stock your fridge with items you select. Could this be the $12 charge? OR...
The Dolphin had a mandatory daily room charge ($10 in 2009) for 2 bottles of water, phone calls and wifi, plus access to resort exercise equipment. Could this be the $12 charge?