Kevin met Samantha. He told her that he wanted to buy her painting for RM5,000. Samantha responded by saying I will think about it. Later Samantha told Kevin that she would sell the painting for RM7,000. Kevin replied he did not want the painting.

One week later, Kevin received a bonus from his employer. He immediately contacted Samantha and told her that he would pay her asking price (RM7,000). Samantha refused to give Kevin the painting, saying the price had now gone up to RM10,000.

Discuss whether Samantha is bound by any contract to sell the painting to Kevin for RM7,000. Make references to relevant case laws and legislation to support your discussion.