Sorry, Beckles, I'm having a hard time understanding your post.
As far as I know, any charge made will get two miles per dollar spent until the end of June. Those miles are taken care of by AMEX before they post to your Delta account.
The 7 miles from MCI are taken care of be MCI before they post to your Delta account.
The result is, the bonus never see each other until they are turned into miles in your Delta account, so there is no "double bonus" conflict here.
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g'day
wl