The official WDW website states the following about PO-RS:
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Additional Guest Room amenities include in-room wall safe and voice mail. Hair dryer, iron and ironing board, coffeemaker and refrigerator are available upon request (some items at an additional charge).
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I would think that the refrigerator would have a daily charge but that the hair dryer wouldn't. A phone call to the resort should answer that question for certain: (407)-934-6000 (or Fax: (407)-934-5777).