In NY for an overnight Jan 3-4, 2018. Took Amtrak from Philadelphia to NY Jan 3; ticket for late day Jan 4 was exchanged for a morning train due to extreme weather. Blowing ice, snow, freezing temperatures, flight cancellations. Penn Station was packed with people trying to depart early so we paid the fee and headed out. I sent 2 emails asking for a refund to Amtrak Customer Service and a more formal letter in the mail followed by another email..all to no avail. No response at all. All communications included scanned copies of the original tickets and the replacement tickets along with a receipt for the penalty.