Thanks for the welcome.
You're not the only one that's confused here.
On my bill for this month my previous balance was listed as £69.77 for my usual services. It then lists a "payment received" (my direct debit payment requested by NTL) for £19.77 and then a credit for £50. I think this meant they creditted my bill for the PremPlus overcharge in advance of actually charging me.
This is due the latest bill I received that no lists the £8.50 for the family pack and two charges for the PremPlus Season Ticket (£50 each) so my "Entertainment Services" charge is £108.50 . I then have the normal £62.10 charge for Digital Base Pack/Telephone/3Mb Broadband plus various charges to make it £170.60 .
I realise (as does NTL) that they made a mistake in giving me the credit on my first bill instead of letting me pay off the full charge of £70-ish and said they would take off another £50 credit to the £170.60 charge to make it £120.60 (this months payments plus the PremPlus).
I'm annoyed at the way NTL have handled the credit payments/direct debit when NTL said the charges/credits wouldn't appear until the bill I'm complaining about and also that the £50 credit they said I'd get last Friday hasn't gone through and it now looks like I'll have to pay the full £170.60 and hopefully get a refund of some description.
I hope that's clearer as I'm confused (as are NTL) about what's going on.