It does take F-O-R-E-V-E-R to accummulate awardmiles from Milesource. But I've had no problems receiving any of my awards. And I agree with them changing the amount of awardmiles without any notice.

I was trying to get the $25 Hertz/Avis Flexi Plan for 3,500 awardmiles. When I finally got enough awardmiles, I went to the redemption page and wham!!! they've raised the limit to 3,600 awardmiles. Sure, it upset me, but it was only 100 more awardmiles.

However, they are very reliable.