can somebody help me to solve this question?

...oo vodafone 9:41 AM 50 %

< Chats 9:41 AM Johnny Doe online We will forward the first $500 when you send me your bank details. The $500 balance will be paid when the DJI drone is delivered Hey Johnny sorry for the late reply. Unfortunately I did not receive your messages until today because I was overseas. NO problem - when can you send the DJI drone? Sorry mate but the company actually sold the drone to another buyer while I was away. 24 Januery 1 :OSPV Issue: Is Maverick permitted to break the promise to keep the offer open? Rule and Application: Mere promise to keep an offer open can be broken unless there is an option. Maverick gives a promise to keep the offer open until 24 Jan, but there is no option binding the promise, because maverick only gives an oral promise to keep the offer (Routledge v Grant) Conclusion: Maverick is allowed to break the promise.