Many thanks Janet and Greene and others for your help and support with this plant. I have moved it into a well aired plastic green house and I use that term loosely.
Hopefully next year if it survives the winter and flowers we will have a better idea if it is the Canterbury Bell or not. I think Janet may well have the full answer to this in the back of her mind, so Ill will wait to see what happens. If it's OK with the site administrators I would like to leave this thread open. Hopefully to a proper outcome.
Thanks again.
Lawrence