Well, the engineer turned up at 1430 rather than 0900 and spent an hour getting the engine out into the saloon.
He then packed up his things and disappeared. We thought he would be back shortly to remove the engine to their workshop. Wrong. By 1700 there was still no sign so we rang the office to be told that they would be back on Tuesday as Monday is a public holiday. I then informed them that we couldn’t actually get out of the boat as the engine was where the steps normally are. Eventually they agreed to come back and move it, which they did. It is still on the boat but at least we can get out without climbing out of a hatch every time!
So, we now have another French bank holiday with a broken engine still on board and I suspect at least another week before we will know anything. Frustrating beyond belief.