@GossiTheDog
Online sales are (if I read the statistics correctly) ~120 million GBP per year, but that's just 1% of the total 13 billion.
While 130mio is quite a sum,
1% of your business is not.
Plus the online shop probably cannot limp along with pen and paper, but probably needs the fully working IT.
With proper BCM they probably concentrate on rebuildíng key servers (and pen&paper) to keep the business from sinking completely.
Then the 1% online shop probably takes a back seat.