Cingular Charging Me $349.99 For Phone I Already Returned

Cingular Charging Me $349.99 For Phone I Already Returned

Chris exchanged his messed up Blackjack with Cingular (now the new AT&T) under warranty replacement. Now Cingular (now the new AT&T) can’t find the phone that he sent back and keeps trying to bill him $349.99 for it. Repeated calls to customer service are unsuccessful and provide contradictory information.