Mia saw the advertisement and directly send messages by whatsapp to Sofi. She informs her that she wants to buy the item.

However, Sofi informed her that she wants to cancel the advertisement as her younger sister wants the dress. Mia feels very disappointed. She said that Sofi had breach the promise because Sofi is the one who makes the offer. Therefore, the offer is still valid and cannot easily withdraw the advertisement.

Based on the situation, advise whether there is a binding agreement between Mia and Sofi?(Issue)