Well it seems that i had to call virgin to get my upgrade, The double speed site said my area was ready on 31st Dec but as of 30 mins ago i was still on 50mb, I just called them, told them the area was ready, they looked it up and saw it was so sent the new config file down the line and within seconds my modem restarted and i'm now on 100mb

Happy chappy, although i am using the old modem so if i want to go above 92mb i'll need to buy the superhub