Started receiving calls with a robot message a few months ago to return their call to the number shown on my caller ID. It said it was very important. I called them back and was told they were trying to collect a debt of $10,000 for my husband from back in 2017 (9 years ago). I asked who the creditor was and she said she didn't have that information but because of the amount she was guessing it was for something medical. I told her we didn't owe anyone $10,000 and that she needed to remove our number. I also said that I was pretty sure the statute of limitations would have run out even if we ever did owe that amount to anyone. I'm sure I would have remembered a bill for $10,000, but I found it really off that she couldn't even tell me who the creditor was, nor was there ever an account number given. I continued to get these calls numerous times a day (from a different number each time) and finally called again to tell them to quit calling. The man said he would note my comments and continue to pursue. The callback numbers were from various area codes, cities, and states. I looked up their address and sent them a cease and desist certified letter, but it was returned as insufficient address, unable to forward. I'm at a loss to make these people quit calling. All contact by them has been via phone.