Sam wishes to sell his computer system. On Wednesday morning, 24^th of March, 2021, he proposed to sell his computer for Rs 10,000. Paul discussed the matter with him and said that the system is outdated and proposed the next day, by sms the amount of R 7,000 for the computer. Sam responded to the message and say OK.

On Thursday night, Paul was in a party organized by some friends and forgot his mobile at one of his friend's house switched off. He got back his mobile only on Friday night. During the day of Friday, Paul decided to buy a tablet and sent a mail to Sam with the following message: "Please forget about the computer which I wished to buy, I have now decided to take a tablet"

Please advise Paul and Sam