Not sure if this is the right place as technically speaking not a dealer but an 'authorised repairer'
http://www.atkinmotorengineers.com/contact-us.htm
took the zed today for service and MOT at these guys who were recommended by Malcolm (MBS). They are a long established family firm that i think used to be a nissan dealer but are no longer, however they are still authorised for warranty work etc as far as I know.
The service I had there was excellent. I took my own oil and filter from opie which they were fine with. They lent me a car with no quibbles or hassle (yes an M reg micra but it went). when i went to collect the car they'd had the wheels off and cleaned all the inside of my alloys and the brembo calipers. Everything had been done spot on. They have also told me they will do the big dent on the wheel arch and a door ding on the other side for about £60.
I had a long chat with them about this forum and told them they'd been recommended by a member. The guy I spoke to was really interested and we had a chat about the clicky axle problem as they're getting one in with that - I told him to have a look on the forum! Anyway, they treated my car very well and obviously had high regard for the zed and respect for the club - they said they have had a couple of people in from the club lately. I will definitely be using them from now on and would highly recommend them to anyone in the area even if it means travelling a bit.
I bought my own oil but the total price for the service and MOT was £204
Thanks to Malcolm for the recommendation.
edit - I bought something while i was there for a tenner so knock that off the above price.