Thanks for this post. I just realized that my 2500 LifeMiles were going to expire in May. Wasn't sure if it was May 1 or May 31.

I decided to donate 100 miles (1 mile just didn't seem right). Got a response that it might take 72 hours to complete the donation - but that might mean that my miles would expire.

I emailed [email protected]. They responded, on Saturday afternoon, within 2 hours. They said my donation had already been processed. So I'm good for 2 more years.

While I was wondering about my extension, I talked to Customer Service. He said I could donate 1 mile to refresh my miles. But, again. I think 100 miles minimum.