Last December/January I traveled with my family in Europe with several flights operated by TAP (Star Alliance member).
My wife and I indicated our miles to be credit at our Miles & More program and my children for the Mileage Plus/United.
Some flights were credited automatically for both programs. Others, after 15 days, had not yet been credited the respective accounts.
In the case of United, I made a credit application, and about 2 weeks later, the credits were normally settled.
In the case of Miles & More program, it's been about 4 months of the flights and still not credited….
same with me, since 4 month see the same info on request
crazy
After my first request, a message appeared in our accounts : "Incorrect date or flight number."
I complained again and they requested to send the originals ticket + boarding pass to an address in Germany. I did this for over one month !
Now, some of the segments flown appeared a new message : "Name not on passenger list." (!?!?). How could it be ?

What else can I do ? Even with the original receipts in their hands, Miles & More program does not believe that we took those flights ?
Please, suggestions !