Which exchange are you on Grundisburgh or Woodbridge, as your postcode in samknows comes up with both.
If you can enter your BT number into the BT wholesale asdl checker and post back the results it will tell us what exchange your line is connected to and what services are avaliable.
https://www.btwholesale.com/pages/static/Community/B...
This is from the December 2011 spreadsheet-
EAWDB WOODBRIDGE IP136NW {EAWDB}{P6} 0 33% 6.03 8a Yes FTTC
Basically 33% of the lines in your postcode connect to cabinet 6 on the Woodbridge exchange and it is planned to have FTTC deployed in phase 8a.
Phase 8a should be starting in your area about now or in the coming months.
Its likely you line is on the other 67% which connects to a cabinet on the Grundisburgh exchange, as for any upgrades you will likely have to wait for the BDUK project in your area or organise a community upgrade program.