Almost all estate agents are the same here. Your agents are simply twisting your arm since you did not tell them in writing your desire to continue with the lease. Have you given them any checks as insurance money? Send them an email that you wish to continue and to extend the lease by whatever period you want. Tell them you will approach the police if they continue with their mobbing. If they still continue, report the issue to Rental Disputes Settlement Committee located at Rawdat AlKhail Street and also to the police and they should help you out.