Hello - thought I'd add to this that there is a way around all this partner friendly stuff (in my experience at least). I had a problem initially as my son has son done pretty much every site out there and there are a lot of 1 per household offers out there.
So - I asked my son to change his address at every site he has joined - which he duly did (about 5 bookies out of 70 asked for utility bills to prove this)
I have since joined over 30 bookies - many of them not partner friendly but using the same address and nothing has been flagged - no problems at all with any bookies including Bet365.
After I have completed the offer - my son has changed his address back and he can help himself to any reloads that he wants (I'm not greedy!)