sounds pretty fishy, such a large acct. gets costed before they establish rates..i really doubt after 3 months...and i must add the most slowest months... NEMF would raise the rates already...besides...such a large acct. would have a contract for at least a year..they would never agree to 3 month terms.....if it smells funny...than laugh....
trust me, theres more to the story here..and i would guess it has nothn to do with raisn rates.