First Bill - Plusnet Weekends charge

[#1]

On my first bill i have

1 Plusnet Unlimited (Contracted) - Market 1 charge 06/07/2013 05/08/2013 £16.99
1 Call Plan charge 06/07/2013 05/08/2013 £0.00
1 Plusnet Weekends charge 06/07/2013 05/08/2013 £14.50
1 Offer code discount - promo9 - - -£8.50
Plus call charges
What is this - Plusnet Weekends charge 06/07/2013 05/08/2013 £14.50
?

[#2]

Hi Bigblue22,
It's your monthly line rental charge.

[#3]

Of course