OK, fine. I'm not sure if you can claim "access" because your destination was not on Bagley's Lane, albeit it was very,
very, close, almost opposite where Bagley's Lane joins New King's Road. "Access" normally means visiting premises on the restricted street.
Find local businesses, view maps and get driving directions in Google Maps.
Were you following a satnav ?
Wait a bit to see what others say, but don't miss the deadline for the discount, if you are unwilling to take the matter all the way to adjudication.