Some people need to complete 10 years residence to get ILR. If some one completes more than 8 or 9 years with 3 years Entrepreneur visa they would want to go for student visa because its not very easy to extend Entrepreneur visa.
We also sent some documents such as new contract, business cards and website link. My business partner called them and they said they have received those documents and will consider them.
I applied for visa in Sep 2012 and attended biometrics on 3rd Oct 2012. I haven't heard anything from the Home Office. Any one knows why are they taking that long?