Wali Gemok was forced to enter into a contract to sell his house last week to Kassim Babab at a price of RM30,000. The market value of the house was RM350,000. During the execution of the contract, several of Kassim Babab's workers, who were physically large and spoke in a very rude manner, surrounded Wali Gemok. Some of them carry parang and threatened to harm him. Advice Wali Gemok whether the contract is valid or not. give me 3 issues