The landlord has a defense to liability under Section 92.164 if:
(1) the tenant has not fully paid all rent then due from the tenant on the date the tenant gives a request under Section 92.157(c) or the notice required by Section 92.164; or
(2) on the date the tenant terminates the lease or files suit the tenant has not fully paid costs requested by the landlord and authorized by Section 92.162.