USA cash net Richard Harris Accusing me of fraud say the have 4 charges against me Texas Internet

I was contact they left a urgent voice mail that if I don't call them back my case will be escalated.  I call back and tge guy says they are issuing an arrest warrent and I'm being charged with fraud. I never paid a payday loan that I don't have any idea what they are talking about.  I asked for more info like acct number so I can contact the police he said they will be out to arrest me by tomorrow at 11 he would not give me the account number.  I asked for his direct line he wouldn't give it to me eventually I recieved an extension.  I wanted to know what account it was deposited to he could only give me the last 4 digits.  I told him I filed bankruptcy 6 years ago and all payday loans where included and the only loan I have out is set to withdrawal in 2 weeks so it's impossible for them to be ligit my credit is not good enough to get a loan I haven't worked in two years.  He just kept saying I'm going to be arrested.  Please help I don't have any idea what this is about and I'm terrified.  It's my sons birthday he has a huge party planned if this is legit he would be terrified and so would I.