I've just received a piece of spam from BT (a list of offers at some BT shop).

I didn't realise they'd sunk quite that low!

They have done ever since BT purchased dabs.com - is it possible you were ont he dabs mailing list ?

I keep getting the same sort of thing from Argos and Egg. I must have given them my email address at some time.

I've bought from Dabs many years ago before they went to pot but I don't believe they ever had my current email address.