Originally Posted by
mre5765
It is UA's mistake; UA should buy this person a C seat on LH metal. Some lawyer ought to start a class action suit. But LH is not obligated to accept UA's mistake. Note that LH for a time last year was denying 3rd party SWUs on ex-USA flights, but admitted, grudgingly that the terms required it to accept them. It has not budged one bit on L fares.
Good idea. After several more calls to both LH and UA I still don't have a solution. If there is a US or German lawyer, specialized in airline/contract, please contact me via PM. Maybe my insurance will pay you in order to create a case against UA/LH.