Client has agreed to appoint me as his new accountant and has signed 64-8, letter of engagement which agrees fee and ran for a minimum of 12 months, and letter to his previous accountant appointing me which I included with my courtesy letter. One week later I had not heard from the previous accountant and sent a reminder. A few days later I phoned up the client who told me he would speak to him by phone. A couple of days later I received a very smug letter from the previous accountant who told me that the client had changed his mind and that they had actually started the work. Any advice?