my 生約 will be started 21st Jan07 and I received landlord's letter (dated on 10Jan07) asking for rent increment starting from 21st Jan07. My questions are,
(1) is the notification too late? when should be the effective date?
(2) the tenancy agreement said the rental period is 21/01/06-20/01/08 and the rent is $xxxx. There is no remark saying the rental can be adjusted after 生約. Does she have the right to increase the rent?