Alamo cheaper through southwest site

I'm an avid user of Alamo car discount codes thanks to all who share them here. However I was surprised, when today I was checking my flight reservation at southwest.com & just for the hell of it checked their rates for Alamo. All I had to do was put in my frequent flyer # and up popped a rate $15 dollars cheaper (no codes needed!) AND I went up from an economy to mid-size. (4/27-5/7) Needless to say, I cancelled through Alamo & rebooked Alamo on the southwest site.

Thanks for the tip, I went and rebooked thru SW and knocked $20 off and went up from economy to midsize. Twelve days to go, can hardly wait.