(Reuters) - Shares of Tesla Inc (TSLA.O) fell more than 4 percent in trading before the bell on Monday, after a report that the electric car maker has turned to some suppliers for a refund of previously made payments in a bid to turn a profit. FILE PHOTO: The Tesla logo is seen at the entrance to Tesla Motors' new showroom in Manhattan's Meatpacking District in New York City, U.S., December 14, 2017.