I live in the suburbs of Chicago & I have 4 lines currently receiving 25K miles & 2 I'll soon be switching back to MCI. The trick is that you have to set them up separately. If you try to do more than one at a time you'll only get 1000 miles for the second line. The other draw back is that you will spend a lot of time on the phone waiting. 25K miles per line is well worth the wait though.
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MilesNut