Getting miles for car rentals has been quite frustrating for me for about 2 years. In 1999, I got my miles posted without calling only 3 times in 12. This year 3 for 4 so far. When you finally get the miles, there is no apology or explanation. Extensive conversations with the desk agents don't seem to help. Could anyone speculate what the problem is? I don't think it is cheaper for them to do by hand what the computer should have done. The car rental help lines often tell me that they have submitted the miles but they'll submit them again. Should I believe them?