Scots,
You are right, but so is return to sender, Shell are a s**t company if you are a contractor, believe me, after the end of the runway at Dyce they are intrusive, picky and generally arrogant and annoying. Why hire a contractor if you don't trust them to do the job you are paying them for ?
But having said that you are correct in that any job is better than no job. SAS has a point too, I wonder who will go from Bristow for under negotiating the terms ?