Did ye know?

That play should stop immediately once a declarer makes a claim.

If one or both of the defenders then dispute the claim (or the claim is invalid), then the director should be called who will then act as arbiter.

There is NO option to continue the play (for either side).

Any points of contention in the claim (such as failure to state the drawing of outstanding trumps in the defender's hands) will be settled against declarer if there is a logical (but not irrational) line of play that allows the defence to win one or more tricks.