Sorry, I couldn't help. That was probably rude of me on your 2nd post. Welcome to Flyertalk.

To answer your question. I've seen DL take their time sometimes in straightening these types of issues out - something to do with ticketing queues, etc. I'm guessing you won't have any problems as long as your tickets look OK online. I would also guess that they'll be after the other 90K miles in due time so don't spend them in the meantime.

Let us know how it works out. I promise I won't tell DL if you get away with it.