They will call again & you need to record your phone calls. Do a web search on your State for the law on 1-party Vs. 2-party recording of calls. In some States you can record the call. In some States you must inform the caller you are recording the call. If this debt occurred after your separation from your Husband, that call is illegal. Why? Because for a debt collector to threaten you to collect a debt is illegal in every State.