Got the answer:
Current Operational Service Levels
Limited Leave to Remain
Service standard: 70% of applications to be decided within 3 weeks of receipt in WP(UK) and 90% in 8 weeks.
Current performance: During February, 60% of new applications were decided within 3 weeks and 72% within 8 weeks. If we need to make further checks or seek additional information, your application is more likely to fall into the category that can take up to 8 weeks or even longer.
We are also working through a backlog of older cases as quickly as possible. The oldest applications now being processed were made in the week commencing 1 November 2004.
If you require an urgent decision, you may submit an urgent treatment request by completing a 'Request for Urgent Treatment' form and fax or email to:
In-Country Operational Team 1
Ops1.in-country@ind.homeoffice.gsi.gov.uk
Fax: 0114 259 3357/3749/5744