Who called from the number +1 (855) 415-4897

NO CALLER ID popped up on my iphone I answered and the woman asked for me by name. she told me that she had a civil complaint filed against me in the city that I lived in (she told me the city) I asked who was the complaint from and she told me that I need to speak to the attorney who is handling my case. she gave me a case number and told me to call 855-415-4897 and ask for Jake Anderson. she refused to give me the law firm name. I called the number (blocked my number) that she gave me and asked for Jake Anderson she asked for my case number and I told her that I didnt have one. she put me on hold and came back and said Jake was in a meeting for the next 30 minutes. she asked if I wanted to speak someone else. Not once did she ask for my name or my number to give "jake" a message. I hung up and called back - the phone rang for a very long time I hung up and called back - an answering machine came on this really needs to stop. I looked myself up in the court database and I dont have a case pending against me.