Plusnet IP Profile Stuck?

[#1]

Hi,
I seem to be having fairly slow download speeds recently, so I ran a BT speed test:
Download speedachieved during the test was - 3511 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :6816 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 6000 Kbps
Shouldn't I be getting better speeds that 3511k on a 6000k ip profile?
Would this indicate it's stuck on plusnet's end?
Thanks.
EDIT:
Just checked in the plusnet control panel:
Current line speed:
4000
Would anyone from plusnet be able to update this for me?
Thanks

[#2]

  Your not alone, every time my sync speed (and BRAS profile)  improves the Plusnet current line speed remains static.
As soon as I get a bad connection, both the BRAS profile and Plusnet profile seem to drop immediately.
Just raised a ticket with support asking for a reset on the PN current line speed.
It would be better though to have a resolution/fix, or at least as I read in an earlier thread a specific button on the
data transfer speed page to cause a reset yourself as a temporary workaround.
Fingers Crossed
Avulon.

[#3]

@drewley, your profile is now 6000.
@Avulon, your profile is now 4000.