Commercial Trade, Inc. Debt Collection Complaint

Commercial Trade, Inc. Debt collection department,

Medical Taking/threatening an illegal action Threatened to sue on too old debt California

I keep getting calls and now I just received a letter from a an attorney w/o works with debt collector. These debts there referring to were included and discharged in my bankruptcy. I feel threatened and so much -. I have told them several times over the phones it was included in my bankruptcy. Thank you. - - -