Or 2 packs for £2.00!
I think these were retailing for £3.99 per pack of 2. Absolutely gorgeous fish, each fillet individually packaged, 140g each. It's clearly not new stock as there's a money-back offer on the side which closed in September 2009 (!) but the 'Best Before' date is 07/2010.
They also have packs of 2 Birds Eye Fish Fillets (Alaskan Pollock but not whole fillets) in a Garden Herb sauce at £0.59 per pack which are really tasty too.