Our flight was delayed more than 24 hours due to weather conditions. I called Alamo and advised we would be more than 24 hours delayed; I was told they were aware and I asked them to make a note explaining we would be more than 24 hours delayed. I was told that was ok and she would make a note on our reservation. I also spoke to Alamo in Vancouver our connecting airport who printed off some information confirming we would be more than 24 hours late. When we arrived at the Phoenix Alamo car rental we were told our car had been given away.in order to re-book the price had doubled! No thanks to Alamo!!! We went to Sixt car rental and they honoured our original agreement with Alamo! Thank you so much to Sixt! We will never rent again with Alamo!