Form e-501 mvat refund application not filed for fy 15-16

DEAR SIR,

I  FORGOT TO FILE FORM E-501 MVAT REFUND APPLICATION FOR FY 15-16. NOW I THINK DEPARTMENT DESABLE THE LINK (REFUND APPLICATION UP TO 31-03-2016 ONLY). BUT I HAVE DEMAND ABOVE REFUND IN MY LAST RETURN FOR FY 15-16. ANY PROBLEM?????