Has anyone ever been allowed to "borrow" miles from an airline to top off an award requirement?

I'm 372 miles short of 80,000 miles on Delta. I need 372 more miles to POST by 11/16 so I can get an 80,000 Virgin UC award before the price goes up to 100,000 miles. I can't buy anymore miles this year (already bought 15,000 for myself and my friend bought me 30,000, max allowed per account -- those posted almost instantly.

Though I have a variety of unposted outstanding miles on Delta, as this month's statement is already out, they're not likely to post until after 11/16.

On the Delta forum I inquired how to best get 372 to POST quick. Someone suggested a quick flight (I checked, on days I can go the cheapest would cost me as much as another 15,000 miles after 1/1/04, plus hotel). Someone else suggested I get Delta to "lend" me the miles. I called, got an automaton type CSA, said she'd never heard of this, I need 372 more miles.

It's an interesting idea, though, to "borrow" miles you'll be due from the airline. Has anyone every had success doing such a thing on other airlines, or even on Delta (i.e., maybe I just got the wrong CSA?). It would be good to know, for future reference (I ran a couple searches, found nothing)

As for my Virgin UC award by 11/16, looks like I may just lose out. Next time I'll plan ahead better.