Yeah it's pretty lame these things are taking so long... no *A upgrades on Lufthansa is another ridiculous partner issue that needs to be fixed.
I flew an LH segment myself at the end of may in P class FRA-LHR (in conjunction with UA flights that posted correctly)... my LH flight didn't post either and I filled out the online form and now I'm waiting. I'm sure it will be several more weeks. Although in my case these 750 PQM's aren't going to change my status so I'm not losing out on anything by waiting. I'd be much more annoyed if I were in your position.