AT&T says it mistakenly paid millions of dollars in fees to a phone company, which now refuses to return the money.

The allegations are contained in a lawsuit filed last week at the U.S. District Court for the Eastern District of Virginia. In it, AT&T says that between 2005 and 2008, it handed more than $3.2 million dollars to Mobile, Ala.-based Global Tel*Link to pay for 1-800 calls made on their phones. The payments were intended to comply with Federal Communications Commission regulations which require long-distance carriers to compensate pay phone operators each time a caller dials a 1-800 number.