BILLED FOR SOMETHING, NO INVOICE, NO DELIVERY

I have \out of the blue\" received a call from a lawyer that I owe Jacklin Enterprises money. I have no invoice, no order, nothing. I have phoned the number on their site but it rings and goes to voice mail. None of my calls have been returned. What the hell !! And now an sms that I must pay. Still no type of communication from Jacklin Enterprises."