A. 2♦ alerted; is 4th suit forcing, usually GF
B. North breaks tempo for ~30 sec before making the 4♥ bid. After South's 4NT, East "reserves rights" due to the BIT; both N & S verbally agree there was a BIT. There is nothing in the play; trumps split 3-2 but the ♠K is offside
East calls Director, who does the following (list below is not necessarily in chronological order)
- Director confirms with South that the BIT was agreed (it was)
- Director does not ask North anything except to confirm the BIT (confirmed)
- Director asks South for reason to bid 4NT. South states 2♦ is game forcing. He has great trump support and his 4NT bid is obvious, regardless of partner's BIT. He says he is willing to play in 5♥ even if partner is missing both Aces
- Director asks East/West for their input. East says pass is suggested; North has not shown anything more than 12 HCP, and can still be a balanced 12 HCP hand.
How would you rule? Is this clear-cut? If you were Director, what other steps would you take / other questions you would ask?

Help

Opps silent as N/S bid/BIT to a slam
South - North
1♣ - 1♥
1♠ - 2♦ (A)
3♥ - 4♥ (B)
4 NT - 6♥
pass