Courtney Love. (AP File)

Courtney Love has hired a private detective to track down the fraudsters who racked up a $350,000 bill on her American Express card.

AmEx chiefs claim the rocker ran up a huge bill on her Gold card and has refused to pay it off, and have filed suit against the star in a bid to reclaim the money.

Love's lawyer quickly dismissed the allegation, insisting his client has been battling the charges for months because she didn't spend the money.

The attorney told TMZ.com, "AmEx knows the claim has no merit. We have told them this for a long time. AmEx's law policies allowed fraudulent transactions to be charged to my client's card."

Now the former Hole singer has hired private investigator John J. Nazarian to trace the origins of the fraud and compile a case for the Los Angeles Police Department.

He tells New York gossip column PageSix, "She's not a person without means. We're ready to go to the LAPD because someone gained access to her Social Security number and applied for cards in her name. It's astounding AmEx didn't question the charges beforehand."

It's not the first time Love has hired private investigators due to financial problems - in April she hired a team of detectives to try to reclaim the millions of dollars she alleged were stolen from her late husband Kurt Cobain's estate.