Damn I can't find the link that I used now, but I searched the court service website. It's possible that Leeds has satelite courts on the outside of it which are part of that circuit but will have a different court number. Also bear in mind that lots of smaller satelite courts have closed over the last 5-10 years so it could have been a court that has merged with Leeds. Also I note that Leeds is a Combined COurt Centre (ie comprises mags, county and crown) - each one of those should have their own separate number. Might be as well to give the court a ring in the morning and ask them.