BT will try anything
I left BT 2 years ago and specifically called them to tell them to remove me from marketing lists, specifying the different form of communication, lest there be any doubt what 'all' meant. They immediately started bombarding our address with remarkably accurate 'to the occupier' mails, which naturally went binward without a second glance.
Fresh from their department of 'interpret the marketing regs till they bleed' comes their latest wheeze; a mailing addressed to me, but just with a general building address, rather than specific flat number, and lacking my middle initial - both of which appeared on the bills and marketing in the past. Pathetic. I suppose they would claim error/another mr xyz etc, etc, etc. Their site claims they will not contact you if you are on MPS. The flat is, but the building with my name clearly isn't, and I guess thats what they think of as a 'legitimate' workaround.
I'm surprised they don't send an 'engineer' round on the pretext of checking the physical line, then try and flog me something - after all, thats what the gas and electricity weasels have done for years.
If there's a hell, its run by marketing types on a busmans holiday.