State Bank of India — rate of interest of HBL for new & existing customer

I have two numbers HBL loans bearing account nos.[protected]-5 and [protected]-6 maintained at SBI, Burdwan main branch and university branch with existing interest rate of 10.15%. I have already applied to the concern banks on 21.04.2015 for re fixing of my interest rate to 10.10% and 9.9% respectively from the date the rates are in force.Till date no reply received. However I once again request your good office to take care in the matter and inform me at the earliest.