Not sure why you'd think that?

Coffee time again Matthew?
Note that I am not criticising Plusnet. Exactly the opposite.
I am pointing out to the poster that there is no ADSL2 product as such available from BT Wholesale and if Plusnet staff are trying to satisfy such a request they may justifiably flounder.
ADSL2 can indeed be forced on a WBC/WBMC connection. From the ISP side that is done by changing the BRAS Profile, (not to be confused with IP Profile which is one parameter within the BRAS profile), on a live ADSL2+ setup. In exactly the same way as you can set the line to G.DMT, which is what it seems to be at on at initial switch to WBC/WBMC from an ADSL-only DSLAM.
The end user can also, as you say, force an ADSL2 profile if the BRAS setting is ADSL2+, by altering his modem setting. What he cannot do is obtain an ADSL2+ connection in the converse setup. Neither end can obtain a connection on a higher protocol than the other end is set to.
The order to upgrade the line to ADSL2 has already been placed
I believe you mean ADSL2+

. Am I wrong and that there is a procedure and product for ADSL2?
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost.
Internet connection - IDNet Home Starter Fibre.
Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.