Ali is the owner of a restaurant in Shah Alam. He has a plan to expand his restaurant and needs to purchase cutleries to serve a larger number of customers that will be coming to his restaurant. He was approached by Abu, who is a supplier of cutleries. Abu offered to sell 500 sets of cutleries, all at the price of RM5. Ali accepted the offer and made the payment of RM5 to Abu. A week later, Abu came to him and claimed that there was no contract between them.

Advise Ali regarding his situation with Abu.