I own a flat which I rent out. Current tenant moved in last February. In November she contacted me to say she did not know about needing a T.V. licence and couldn't afford the fee on top of rent and other outgoings. She asked if I could cover cost. So as not to lose a good tenant I said I would pay half £90. She is now moving out and expects full depost back but I am thinking I should deduct the £90 as the licence goes with her. WWYD?