回複： 回複：他們已經收到支票,不過沒有兌現

You have all the evidences on your side and don't be intimated by them. If they report to Credit rating agency. You can always challenge the results with credit rating and meanwhile to let them know you will take them to the court. The worse case, you can find a real estate lawyer to pay him/her $80-100 to write a letter to landlord asking for correction. They don't want to go to the court easily because it costs their money even you sue them and they lost in the court.