HSMP Extension granted last week, details are:
Application received by home office on 9 June.
Letter confirming receipt of application dated 9 June.
Fee deducted from account on 10 June.
Approval Letter dated 15 June.
Documents & passport received on 18 June.
I submitted my extension application almost 3 months before the expiry of my initial visa.
payslips from inception of visa until extension application date.
bank statements from inception of visa until extension application date.
letter of appointment from employer.
letter from employer confirming employment at extension application date.
BT Utility bill confirming residential address
Letter confirming residential address.
So the home office is now approving these extensions super quick