It is the copy IP Profile. I wouldn't call it "Current line speed", but can understand the thinking behind doing so, that being the highest possible throughput.
The estimate, as has been said, is straight off one of the BT Wholesale databases and relates to the sync/connection speed. As that is the figure quoted by all other ISPs at sign-up time there is nothing wrong in PlusNet quoting it.
The estimate is wrong for the reason most of us know - the BT Wholesale databases take a long time to react to changes in line conditions. We know the line was swapped during the trouble with Sky, and the new one just isn't as good as the previous one. The same happened to me a few years back when I had a line fault. I lost 700kbps sync on ADSL2+ when the e-side was changed.
Anyway, time to back away from this thread for me

. The OP has made it clear several times he simply wants out. Nothing we suggest here is going to change that.
My broadband basic info/help site - www.robertos.me.uk |
Domains,website and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 55.8/14.5Mbps @ 600m. -
BQM
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.