Income tax

I filed ITR-4 of one my client of A.Y.2013-14 on 24.03.2014 from income tax website but by mistake i forgot to press (Calculate Tax) button.there is a TDS of 28000.I have correctly entered TDS Details in return.party income is below taxable limit so there is a refund of 28000 rs.now problem is that XML was generated successfully and i upload the same return but after uploading i seen TAX Payable 0 and amount Refundable 0.amount refundable should be 28000.now what should i do in this case?