Can I be charged a fee for changing tenants in between contracts?

[jmcmac]

Thanks for your help - I may have missed something here - but it seems to contradict your answer in this thread

Charge for tenant change at end of contract

Hi! Our one-year contract ends soon and we want to renew it with another one year contract, but with a name change on that new contract. Our landlord is now asking a 250 pounds charge for that tenant change. I know he can charge for a tenant change during an existing contract, but as our one-year contract ends, I wondered if this doesn’t count as a new contract? Is he allowed to charge for name changes when it’s only for the renewal of a contract? It would be great if someone knows and even bett…

Just to clarify, our original agreement was for 12 months, which has ended already.