In general I am satisfied with MCI. They used to have lots of errors in their billing, but I have had hardly any billing problems with their online billing system.

They seem to have many different mileage promotions, for example MileageAddict reported earlier that he got a 1K monthly bonus with the $15 plan. I was told specifically that the $15 plan does not qualify for the 1K monthly bonus.

But when they offer someone some bonus they should honor the offer made. I have had a hard time getting the miles that they had offered me, and it has taken me several phone calls trying to get this thing straightened out, and I am still not sure if I will get all the miles that they had initially offered.