Hello, I am a solicitor with 20 years experience. I will try to answer this.
Thank you I'd appreciate your advice
I am afraid that you may not in a strong position in this. A clause requiring 3 months notice if you want to terminate the contract after a year is unlikely to be considered a punitive clause. It does contradict his representations to you but it will be very difficult to prove those representations in the absence of any contemporaneous notes by you or letters to him about those representations.
In the absence of any very clear evidence of the misrepresentations any court dealing with the dispute might well decide that the signed contract provides the most reliable guide to what was agreed. I know this is not the answer you were hoping for but I have to give an accurate answer.
Many thanks. You're right - it's not the answer I was hoping for but I least I know where I am. I'll just pay up - it was never really about the money but I am cross with myself for being so trusting and, as it turned out, naive.