I am a sub contractor working on a large trash enclosure for a GC in Seattle. The engineer had to reconstruct the wire mesh and framing because manufacturers don't make mesh in large sizes. Due to the changes it has increased the job with a change order of $42k. The GC is rejecting the change order. And the GC wants the changes to be made but they do not want to pay. What do we do? They are alluding to us delaying the job.