I have always, with my husband and my account fluctuating, cancelled mci and then accepted the bonus for coming back to them. Well several months ago, as I normally do, I cancelled MCI and they called and offered a bonus to come back. I accepted and after 4 months of not getting the bonus miles posted to my AA account I called only to discover that I can no longer get bonus miles because we've gotten so many in the past. Now I can understand their policy, but then I should not have been offered the miles to begin with. I asked to at least have the miles that I should have already gotten for the last 4 months and I was denied. I will NOT use MCI again. They blame AA and AA blames MCI.So beware those bonus offers.