Well, got a new (just one) key FOB. They said only one FOB and if that fixes it, then they will order another.
So, the new FOB worked for a week, then failed to lock the doors again. The old FOB did not work either. (took video to prove the faults)
Went back to the dealer and showed them the video and they took the car in he shop. This time they said the start button module antenna had corrosion on the connectors and they cleaned them (?). This should fix the problem, they said. Not sure how the start button module interacts with the lock function of the FOB but, that is all they are going to do....this time.
So, we will see how this works.
The saga continues