HARASSMENT FOR SOMEONE ELSE'S OUTSTANDING DEBT

I received an e-mail for my ex husbands outstanding debt. I have informed Patrick that I am no longer married to his client and the debt has nothing to do with me. Today, one week after the e-mail, I am receiving yet another e-mail. I phoned Patrick who arrogantly told me that I am the contact on the outstanding debt. I have provided them with my ex's place of work and all they had to do is look up the number on Google, but it seems like it is easier to harass people. This is not where this stops. Should I reveive another e-mail for someone else's outstanding debt, I am lodging a formal complaint at the Law Society. Get your act together and stop harassing me for debt that is not mine.