When we arrived in London to pick up our car, the Alamo agent told us that credit cards did not provide an insurance waiver in England. He really pressured my wife and me to accept their waiver. We finally succumbed to the pressure, believing that he must know whether there is a credit card waiver available in England. When we returned the car, they claimed there was $600 damage, which there wasn't. The deductible of Alamo's insurance didn't cover it. I discovered then that because we had signed the waiver, it invalidates our free 100% coverage through MasterCard Gold. We ended up paying about $799 because of their business practices.