How to upgrade to ADSL2+?

[#1]

BT Wholesale availability checker states as below that I should benefit from switching to ADSL2+.
I say 'benefit' as I only currently get 2 to 4Mbps max. How can I switch? 
Our test also indicates that your line currently supports an estimated ADSL2+ broadband line speed of 8.5Mbps; typically the line speed would range between 7Mbps and 10.5Mbps. Our test also indicates that your line could support an estimated ADSL 2+ Annex-M broadband upstream line speed of 1Mbps and downstream line speed of 8.5Mbps; typically the downstream speed would range between 7Mbps and 10.5Mbps.
Thanks,
Paul

[#2]

Hi Paul,
You are on ADSL2+, I've checked your sync rate and it's currently just over 10MB/s. Are you currently connecting wired or wireless?
Chris

[#3]

Quote from: pale95

I say 'benefit' as I only currently get 2 to 4Mbps max. How can I switch?

How are you getting that speed range, from a speed test?
To confirm the sort of speeds you should be seeing could you run the BT diagnostic speed test and post the full results.

[#4]

Just to add, your profiles on our side and our suppliers' are both matching at 9400kb/s. If you could post the results of a BT speed test that would help, also if possible please advise where you're seeing those 2-4Mb speeds - is it from a single site, on a single device? wired or wireless connection? The more information regarding your setup the easier it'll be to help

[#5]

My Apologies..
My tests were from the Plusnet tester (which always seems to say it's not operational) and ADSL Guide/BB Max tester.
HOWEVER, I just pluged-in via ethernet to do the BT test and I do indeed red-line at over 8 Megablips!
I use an old laptop which probably can't keep up with my wifi router.
Sorry to have bothered you all and thanks very much for the attentive replies.
Paul (Pale)