I'm currently renting a flat and have been for 6 months now. The tenancy agreement states:
Not to keep any domestic animals or birds in the Premises without the prior written consent of the Landlord or his local office, such consent not to be unreasonably withheld, delayed, or withdrawn unless subject to the terms of the headlease.
Is there anything I could do to plead my case? And would they still be able to find reason to deny permission?