Tds on interest income deducted by bank @ 20%

Dear Sir

I have one FD on which bank deducted TDS @ 20% for not submitting PAN No. and bank also issue TDS certificate to me without quoting PAN No. on it. After receiving TDS certificate from bank I approch to bank and requested them to fill their revised return so that i can claim credit of TAX deducted and bank also agreed to do so after deducting certain charges on it. bank revised their TDS return and given me token no. which they received at the time of revised return. But till date i.e. after 5 months of submitting revised retun amount not shown in my 26 AS.

WHAT FURTHER I CAN DO IN THIS MATTER AND HOW CAN I TAKE CREDIT OF TDS DEUCTED BY BANK, PLEASE ADVICE.