Blackstone Financial Group LLC. Manipulative, Rude, Scam Artists with Power Ontario, California

I saw another user describe the same situation I am in. I do not have credit cards or any debt and I suddenly receive a phone call stating that I am being sued and that if I dont call back within two hours I am going to be taken to court. I received the message TWO days after it was left. Since I know I am not in collection for anything or have anything that I can be sued over I assumed it was a mix-up. Especially after I checked the court system for the case number they left me and found nothing. Then it shows up on my credit report that I owe 1134.00! I monitor all my reports regularly I know this is not my debt. But now dealing with them is going no better than the other user. I was told that I cant do anything about it because I supposedly ignored them. Maybe I was out of town but that doesn't matter they just want money that I don't owe. And I get to fight something with a shady organization. I'm not sure what to do.