Golauk wrote: My visa is expiring on 19 June 2006.
As your application for an extension was delivered on 29th June, do you mean that your current visa expires on 19th July?
If you do mean that then do appreciate that Section 3C is there to help you. That is, if you have a valid visa and apply in-UK for an extension, and you apply for the new visa
before the expiry of the old visa, then that old visa is "treated as continuing" until the application is dealt with, and should it be rejected then until the deadline for appealing against that rejection.
So if you applied prior to 29th June and your old visa expires on 19th July, there is no possibility of you suddenly becoming an overstayer at 12.01.am on 20th July. Simply that old visa is still legally valid until they deal with your application.
Alternatively, if you really did mean that your old visa expired on 19th June, well clearly you were already an overstayer prior to applying for a new visa.