Generally, contracts made under duress are unenforceable in law.
The case of Lim Geok Hian V Lim Guan Chin gives guidance on applying the guidelines for Duress.
To raise the defence of undue influence we need to fulfill ALL of the guidelines from Lim Geok Hian V Lim Guan Chin.
One of the guidelines to determine economic duress is to determine whether the party being coerced, protested to being forced.
Undue Influence renders a contract void.