Yip -- been known to happen. Kept getting a bill for my MIL for 2 yrs after she died. Tried to tell them, sent a death cert. (certified, too!!!) and STILL they kept contacting us. They wouldn't talk to me about what the bill was for -- said that it was private between MIL and them!!! Finally, we ignored their calls.....they sent her to the bill collection agency. When I got a call from them I told them that MIL was dead, had been dead for 2 yrs, and that I'd tried to resolve it.....they told me the charges had occurred AFTER the date I said she was dead! MIL was murdered --- I sent them a death cert AND a copy of the newspaper articles............never heard from them again!!!!