Suhaila is the youngest daughter of Dato Sulaiman, she recently obtained her degree in Early Childhood Education. With encouragement from her parents, Suhaila decided to operate her own kindergarden.

She began by searching for an appropriate premise. She found a new corner terrace house with a large compound. The advertisement at the house stated that the selling price was RM650,000.00 (negotiable). Interested buyers may contact the owner, Eric Chew. After viewing the house, Suhaila offered Eric Chew RM600,000.00 for the house. The owner, Eric Chew, however firmly stated that he cannot accept RM600,000.00. Instead he will consider and he offered Suhaila RM625,000.00. Eric Chew has been calling Suhaila, demanding that she proceed with the purchase of his house.

question: Whether Suhaila is obliged to proceed with the purchase of Eric Chew's house?

what is relevant authorities under contract law 1950 to this issue?