Ali agreed to buy a house from Lim Real Estate Development Corporation for RM400,000.However, he was told that the house would not be able to guarantee him unless he paid another RM20,000.Ali then paid the extra amount, but 14 days later he wanted to cancel the deal.

Will Ali be able to cancel the transaction and get back the amount he paid?

With reference to the relevant provisions of the Contracts Act 1950 and decided cases, advise the party involved in the above situation.

(Please indicate which provision of the Contract Law has been applied and provide 2 decided cases)