Tom Juma wrote to Katana Dave offering to sell his car to him at ksh700,000. Katana Dave accepted Tom Juma's offer subject to the price being reduced to ksh650,000. It has become apparent that Tom Juma is not willing to sell the car at ksh650,000. Katana Dave now writes to Tom Juma agreeing to buy the car at ksh700,000 but Tom Juma responds that he has already sold it to another third party. Katana Dave is upset and comes to you for advice. Advise Katana Dave on the legal position.