THey phoned me one Sunday evening at 9:30. I pointed out that it was a bit late to be calling and maybe they should fark off.
Another one called on Monday at 5:30. Telling me that I had been with BT a while (6months he didn’t know this) and I should change to some new call plan which would suit me better. I asked him what I had spent in the last month on calls, he didn’t know, I asked him how long I had been with BT, he said at least a year. He told me I would benefit greatly from having friends and family nad it would reduce my bills by a lot. I asked him how he knew who I called.
I then told him that they had called at 9:30 the night before and that was taking the piss. He agreed. He then tried to get me to take broadband. I would be able to download at 100mbit. I told him that was great, would that mean my emails came faster. He said I could watch TV online. I told him I had a TV in the house and it worked just fine.
Eventually after 20 minutes or so he agreed that he would have me removed from the call list and not to be bothered again.
And so far he has kept to his word.