Definately late fee charges are not applicable for you. Also Landlord need to contact you before changing his present address. Here he’s trying to play game also by increasing the rent cost. Thus contact Landlord if there are some number available with you and make conclusion of this or either try to get help from society member for a written documentation about landlord harassment. And don’t forgot to rate this landlord in RPA, So that other rental will not be deter.