From a post on the portal forums it appears the extra capacity may be here this week - hang on!
(Also if your 8am to midnight usage is less than 2GB per month, you should consider changing to PAYG, it is and will always be faster than BB+, especially at peak times).
jelv
Plusnet ADSL PAYG Jan 2004 -
Plusnet Dialup Nov 2001 to Jan 2004
Previously Compuserve, BT & LineOne Dialup