Use the IRAC method to answer the following legal problem.

1. Vin wants to sell his house which is situated in a high-demand area for RM 1.8 million. In February 2022 he made the offer to several people stating that the offer will remain open until 31st March 2022. An interested buyer must sign an acceptance letter and pay a deposit of RM200,000 at the same time to show his / her serious intention. Both the acceptance letter and the deposit money must be handed to Vin's lawyer on or before 31st March.

Diesel wishes to buy the house. On March 2nd, he went to the lawyer's office, signed the letter, and told them that he will bank the money in three days' time. On March 3rd, Vin's lawyer contacted Diesel telling him that Vin has decided to revoke the offer. Diesel who is really looking forward to owning the house wishes to sue Vin for breach of contract. Discuss whether a valid contract has been formed between Vin and Diesel. (7 marks)