I have been through the same thing. We rented a compact from Alamo directly in June for $108.00 total using a coupon. Then I tried using the coupon code for the upcoming trip. The same car would cost me about $250 total. What?! that's a big difference. I have tried using all the code I can get my hands on but still can't beat priceline. I bet on a economy car for $15 and was accepted by Alamo. They even tempted by into upgrading on a compact for $2 more. I have very happy with priceline.
