Moving to curb abuse of this year's one-time telephone excise tax refund program, the Justice Department and the Internal Revenue Service obtained federal indictments this spring against tax preparers who allegedly filed thousands of dollars in fraudulent refund claims.In recent weeks, the alleged refund schemes involving preparers in Miami, Fla., Norcross, Ga., Dallas, Texas, and Riverside, Calif., led to federal indictments. This week, the defendant in the Miami case pled guilty to one count of making and presenting fraudulent federal income tax refund claims to the IRS.