ACE.INC In an email we told they were wanting payment for a debt that's not ours  Internet

In an email we received we were told they were trying to collect $1175.42.  We were told to contact them by email or the phone number.  They indicated they were going to put a hold on my husband, Gary's, social security number and if they had to go through with court preccedings that would be a situation that would be unpleasant.  They were going to contact employers, agencies and other individuals to place pressure upon us to pay this debt.  We've received letters from other agencies that have approached us to clear up debts that are legitimate.  This didn't look or read like anything we've ever seen.  So we looked them up on the internet and your web site was the first stating this was a ripoff.  We do have debt and are trying to settle them and we don't appreciate the strong arm tactics and threats.  They didn't state where the debt originated or any account information.  They did give us a customer id (ace-262053) and the loan amount due (1175.42) and that was all.  Unfortunately we deleted the email and can't retrieve it.  My husbands last loan amount was a third of their total and has been taken care of.  Places like this need to be stopped before someone take them seriously.  Thank you.