UPDATE
Finally, five months and one day from flying from EWR to SIN in business class, after two on-line requests, two letters, and two telephone calls, the miles have finally posted.
It was a battle because Miles & More kept insisting that I had received credit for the flight in another FFP and then told me that there was no record of my having taken the flight. I asked that they investigate because at that point I suspected fraud, perhaps by an airport employee since I recalled a newspaper article about a UA employee who enriched his FFP at the expense of passengers.
I was going to give up and change my *FFP, but I have been a Miles & More member since the first year of the program and have four electronic upgrades left to use.
Wow. It certainly is a lot easier to request missing credit in AAdvantage and Executive Club.
It was 20,000+ miles after all, which is one-fifth the way to Senator.