Question: What does a disqualified player have to pay the winner?

Answer: The reason a player’s hand has been declared dead will determine the payout by that player to the winner.  There are multiple answers defining dead hand payouts in Mah Jongg Made Easy and in Bulletins. 

Source:  Mah Jongg Made Easy 2020 page 16 #3 [a], 21 [b], [c]