CESS related

1) You Can not Claim Cess ITC because,if it is not in the Invoice means you have not paid Cess to supplier, only you may have  paid CGST and SGST , also Cess ITC Can be claim against only outward Cess liability, not against CGST, SGST , IGST , UTGST etc , so in my opinion you do not Claim ITC of Cess .

2) Ask supplier in writing , why he has not charged Cess in the Invoice ?,and reported directly in GSTR1 and Paid , also  take  reply in writing  and keep it for your  record  along  with  Invoice .  

3) Take others opinion as well in above Case .