Originally Posted by
Mr. Tickets
And you don't think Delta is tracking this? I think Delta still looks at a change as a redeposit (you can check your account and see that the miles are put back in and then taken out again). Exactly the type of thing that could make Delta review procedures and close loop holes.
I have had hundreds of awards and redeposits for my family of 5 often double and triple booking combinations of one way trips of many permutations and combinations for each of us. As long as a booking is not impossible/conflicting it is within the rules and I have never been told otherwise. No different than frequently buying the cheapest F and doing SDC to a more expensive F same-day booking.