Refund ..updation of banks after filing of itr

Since in ITR REFUND BANKS SELECTOR SWITCHES DIDNT WORK PROPERLY AND ALL BANKS SHOWN TICK MARKED WHERE AS ONE BANK WHICH WAS EVC ENABLED HADBEEN SHOWIN EMPTY .SENT HARD COPY OF ITR ALSO. REFUND COULD NT BE RECEIVED TILL PROCESS OF ITR SINCE 19.8 IS COMPLETED.FROM ABOVE  KINDLY CLARIFY..

1 CAN I UPDATE BANK SECTION AGAIN FOR REFUND

2 REFUND PORTAL STILL SHOWS THAT AO HAS NOT  ASSESSED ITR  FOR REFUND

I CONTACTED AO,HE SAYS SINCE ITR IS ONLINE CPC BANGLORE IS TO DECIDE OR PROCESS

WHEN I CONTACTED CPC HELPLINE,EXECUTIVE SAYS HE WILL ESCALATE THE ISSUE.I TOLD YOU CONNECT ME TO YOUR SR OFFICIAL FOR CLARIFICATION.HE SAYS ALL ARE BUSY.IT HAS HAPPENED THRICE AND SNAPS THE LINE WITH COMMENT THAT WE WILL CONTACT YOU.BUT IT NEVER HAPPENS.

THERE R 13 GRIEVANCE PENDING,NO BODY REPLIES. 

WHAT TO DO FOR REFUND.PL ADVISE.