Subsequently I spoke to someone from PN in December who explained that due to OFCOM rules that PN would have to close my account at a pre-agreed cost of £25.00 to cover the suspension. Consequently it seems that I have "lost" the value of my referrals worth roughly £8.00 a month.
Seems to be a little daft to me, as PN have effectively saved themselves the cost of my referrals whilst retaining the customers, so far; there again maybe PN are shrewd folk. What incentive is there for me to refer PN again, now that my account is closed?
Go with the flow