The radio station set up by the Halifax as part of its latest advertising campaign has been shut down by the broadcasting watchdog OFCOM.
The station - Halifax FM - was manned by bank workers in their spare time and allowed the bank to broadcast directly to customers on a 30second basis most nights.
However, OFCOM says the bank had failed to win a radio licence or to be granted a Restricted Service Licence (RSL)and therefore was deemed to be a pirate radio station.
"We will not tolerate this kind of abuse of the airwaves" Donald Maxwell explained. "We don't care how big a firm it is or how hard they've been struggling recently. Anyone found breaking our rules will be closed down."
The firm is appealing against the ruling, but Mr Maxwell said he's confident the closure will remain in place.
"Their biggest mistake was showing millions of people their station on an almost nightly basis. If they'd have kept a low profile, like the one adopted by the BBC's 6 Music, they might have got away with it."