I am very close to hitting the 80000 tier credits needed to reach the Diamond Level 3 and have some questions. I know once you reach that tier you get a $750 airfare credit which has to be booked through the TR travel department. But what I'm not sure of is how long I have to use that credit. Is it only good through March 31st? If so, that's going to be a problem for me. Let's say I reach that tier in December, does that mean I only have until March 31st to take my trip using the airfare credit? Or do I have all of next year too? Also, I know we receive the r/t limo service within 50 miles, but is that for every trip booked or only the trip booked using the free airfare? Thanks!