Yes, I was forgetting the checker (mis)names it VDSL

. It is VDSL2.
Given those estimates you would appear to be on 40/2. But as MrSaffron says, even if they put you onto 80/20 (Fibre Large that you are paying for), your only benefit will be an increase in the upstream to 6Mbps or so.
It would be worth using the same checker for a couple of your neighbours to see if theirs are roughly the same. (And on the same cabinet as you). Preferably their phone number if you know it and they are not on TalkTalk or Sky. On those the number won't work, like yours.
It looks as though whoever did the provisioning looked at your downstream estimates, (they see almost exactly what you just did), and decided that 40/2 was what they should order from Openreach. But didn't tell accounts/billing!
However, your 16.49Mbps (
wireless speed tests?) suggest improving your home wiring in the same way as we used to do for ADSLx could give you more speed. On FTTC it is even more critical than it was on ADSLx.
Remember,
all equipment connected to the line must go through a filter. Second, the router needs to be next to the master socket if possible. Third, see the Ring/Bell wire and Miscellaneous nasties links
on this page. It was written for ADSLx but applies even more on FTTC.
Edit - also try always to do speed tests wired to the router. Wireless can lose a lot.
Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
My broadband basic info/help site -
www.robertos.me.uk. Domains, site and mail hosting -
Tsohost.
Connection - AAISP Home::1 80/20. Sync 54999/16208Kbps @ 600m. BQMs -
IPv4 &
IPv6
Edited by RobertoS (Mon 19-Dec-16 13:54:34)