I moved into a rental property a few months ago and received a letter from the letting agency charging £120 for renewal. I'd happily go on to a rolling tenancy. I've gone back over the lease and the £120 charge isn't mentioned in the lease but it is in a cover letter handed to me the day I collected the keys.
Am I correct in thinking this means it is not part of the terms and conditions of the lease, and I can legally refuse to pay?