Water connection installed incorrectly - Right to correction from the general contractor?

Hello dear construction experts,

we are currently building our house with a general contractor. Now the sanitary subcontractor did not install the pipes according to our bathroom plan, i.e., centered for a 60 cm washbasin. The annoying thing is that I specifically bought a designer siphon, which now cannot be installed, and instead a really ugly and also crooked siphon was used. Since the tiling is already done, it would of course be a huge effort to install it correctly. What is my legal situation here, can I demand rectification from the general contractor since a 60 cm washbasin was indicated in the work plan, or can the general contractor claim disproportionate effort, or do I have to accept it?

Thank you very much in advance!
Sony

Yes, that amounts to some compensation for pain and suffering. Opening everything up just because Mr. Graf wants the [Designwasserhahn] is disproportionate. That can happen, sell him the [Designhahn] for your equity and have him give you the other one as a gift, done.

So shorten the bill from the plumber? Also no ... that's not possible, that's the black market worker, right?? https://www.hausbau-forum.de/threads/hohe-sanitaerrechnung-ist-das-realistisch-oder-abzocke.31121/page-2#post-324475 Yeah, stupid now...

How many millimeters is it? And is there a reference section that he used instead of another? Photos would be helpful. Also, additionally, a drawing showing where it should have been and where it is now. Because: first the connections are there, then the sink is installed. Couldn’t it have been installed in the middle of the connections?

Attached is the photo. We initially wanted a washbasin cabinet but then changed our minds to the sink. Of course, it would look much better with the designer bottle trap than this thing. Also, I had previously asked the plumber if a 63 cm sink (which I had in mind before) would work. He said yes, but only with a crooked trap, which of course would be unsightly. Then I specifically chose a 60 cm sink only to end up with the same mess. And now having to look at this every day for 30 years – even if it is just a small thing – annoys me!!

So the only thing that would bother me about this now is that the cutout probably doesn’t fit a standard base cabinet, so you’d have to saw it again separately.. but if you put something under it like that, it probably won’t be noticeable at all anymore