New Line Rental Charges

[#1]

Does the imminent line rental charge apply to those of us who have paid 12 months in advance? Or, will it only apply from any renewal?
PN Evening & Weekends (£13.99) + Caller ID (£0.99) costs £14.98. BT only charge £14.60 for this service. So, how can PN claim to be cheaper than BT?! 

[#2]

Hi,
As you have already paid for your line rental, this charge will not be increased until the point at which you need to renew.
If you are within your last 3 months of the contract, you are able to renew for a further 12 months at the current price.

[#3]

Hi Mr T
Does the £14-60 plan from BT include evening calls? I thought the BT Evening + WE calls was £3-15p + £14-60p (monthly line rental until Jan)  i.e £17-75p. I think the £14-60p plan only includes weekend and not evening calls.
Reason for edit meant until not from Jan.

[#4]

As taken directly from the BT website, the Line Rental currently is £14.60, with this alone you would get inclusive 0845 & 0870 calls. You would need to pay a further £3.15 for both Evenings and Weekend calls (close to what Salmo has said). This does put our new prices still cheaper than BT.
Furthermore as of 05/01/2013 the prices will change further from BT as follows:
Line Rental: £15.45p/m
Evenings & Weekends Call Plan £3.30p/m
Total: £18.75
This puts us cheaper than BT
<a href="http://www.productsandservices.bt.com/products/landline/line-rental-and-calling-plans">Source</a>

[#5]

Thanks for the corrections re my pricing assumptions. Looks like I was comparing 'apples and pears'.