Non credit of ITC -doubt

Dear frds/ experts,

One of the company had bought chairs for office and some jewels for gift purpose and received the GST bill , where the company's GST no. was printed. It was nearly during Jan'2018....while auditing we came to know that the parties who given that GST bill, haven't paid the GST, so that it was not reflected in GSTR 2A. As a result the company couldn't claim that GST amount...Now my doubt is, how to solve this problem and make this company to get this ITC benefit??? Plz treat very urgent & do needful....

Thanks with regards,
-Maya.