Product: Debt collection

I received a fraudulent scam letter in the mail on XX/XX/year> which I initially noticed that the envelope post marked from XXXX, OR and when I took the letter out it said that the letter was from the " law office '' of Quest Legal Group which is their office is located in XXXX XXXX, CA. As I started reading the letter it said that they represent a pay day loan company called XXXX which then I XXXX the company XXXX and I read that XXXX is owned by a pawn broker called XXXX XXXX so I started thinking that this is part of a scam but regardless the letter continued on saying that I had until XXXX XXXX to pay off the debt owed to XXXX in the amount of {$1500.00}. The other part of the notice which is strange is that it says it says that that the loan was taken out while I was working for a company called XXXX XXXX so now there is another company that is involved in this scam. The worrisome part of the letter is that they print family member 's names on the letter where they say that they will subpoena your family members and take them to court as well to testify against and also that they will call XXXX to damage your credit score which they actually print a fake credit score at the bottom of the letter so all this is from the first letter I received on XXXX XXXX. 
The second notice I received in the mail from Quest Legal Group which this one was actually post marked from California I received on XX/XX/year> which said the exact thing as the first notice except that the amount decreased to to {$490.00} instead of the {$1500.00} that they were demanding from the first notice. The notice said that they were going to be nice with me and help settle the debt as long as I pay them the {$490.00} by XXXX XXXX and if they did receive the payment then they would purse on taking me to court. 
Obviously I have never even heard anything or seen any of these companies or even worked at any of these companies in my life until i received this fraudulent scam letter from Quest Legal Group. I started doing some research online and I have read other warning notices from other victims that say that they too have received the same weird fraudulent scam letter from XXXX or from Quest Legal Group and in all the letters it says that they need to pay them the money that the victim supposedly took out with XXXX if not that they will be taken to court and legal action will be obtained. The other victims of this scam also say that they have never heard of Quest Legal Group or XXXX until they opened the scam letter that they received in the mail. I even read a complaint on XXXX  about another victim that received a notice from XXXX so I ; m not sure if all this scam companies are working together to create this fraudulent scam or could just be 1 person using all these companies including the law office of quest Legal Group to create this scam. 
I did check with XXXX representative to see if someone might have used my information to take out a pay day loan using my personal information but the XXXX representative guaranteed me that there is no activity on my credit report from any company called XXXX or XXXX XXXX or any from any debt collectors under the name Quest Legal Group so then raises the question where are these scammers getting people 's information tocreate these fake debts which are obviously fraudulent scams