Occasionally get a call from them. I don't answer anything with a name or number I don't recognize. Instead, I look them up online and then either call back or simply forget it. This outfit does make a point of letting their phone ring forever before they give up. And they always call on weekday evenings, as most scam outfits do. I've never spoken with them. One thing that helps is to run an unfamiliar number through this site for more information on them.