[BenMcr]

Could be two reasons. A lot depends when they first joined.

1) If they are in Bill Area 01 - 18 and have been with cable before 2007 then it will be down to ex-telewest's price policy which would charge full price for all services.

2) If they have joined since Feb 2007 then it's likely a billing mistake - although there have been several different prices for their services even since then