Currently just a few weeks from the end of a six month fixed term tenancy rented privately through a letting agent. Contacted today by letting agent to advise of this and told that I need to start a new fixed term contract of 6 or 12 months. I replied that this doesn't suit (junior doctor about to apply for next stage of training so location a bit up in the air, plus we'd like to buy not rent so need more flexibility to leave a property). I suggested we just allow the contract to run into a periodic tenancy. They refuse saying this isn't convenient??? I have replied stating that from Shelter website it would appear we are entitled to this and are under no obligation to sign a fixed term again. They're yet to reply. I am aware I'm risking a 'revenge eviction '. Any legal clever people give me a clue if I'm right or not? So as not to drip feed, the original contract does mention renewal of fixed term at expiry of original fixed term but looking into this I think this could be deemed an unfair clause possibly.