Answer:
This is known as Economic Duress
Step-by-step explanation:
Economic duress in contracts is said to occur when a party to a contract threatens to cancel a contract unless the other party involved agrees to their demands. Phillip refusing to go on stage unless he is paid an additional $5000 put Dalynda under economic duress as that was an abrupt decision made by Phillip just at the very minute when his service was needed the most.