Morgan Stanley, which is a leading underwriter for the IPO, informed that the investor of Facebook Inc. was not its customer, and that the lawyers of the bank had filed a complaint in the federal court of Manhattan and had asked for an order to stop the Facebook arbitration case. The complaint, which has been filed in the District Court of US for the Southern District of New York, states that the investor is not a customer of the firm as the investor used the Vanguard Financial Group Inc. to order shares of Facebook Inc. On being called for a comment, the investor named Uma Swaminathan of East Brunswick, New Jersey, has chosen not to respond. The investor, according to the Facebook arbitration case that she filed, said that Morgan Stanley had not informed all the investors that it was degrading its outlook on Facebook Inc. prior to the IPO. She also stated in the complaint with the Financial Industry Regulatory Authority that as a result of this she could not have canceled her orders for shares.