makegood
noun[C]
uk/ˈmeɪkˌɡʊd/usMARKETING
anoccasionwhen nopaymenthas to be made for anadvertisementby atelevisionorradiostation,newspaper, etc. because asmallernumberofpeoplethanexpectedsawit, or because of amistakethat was made:
A makegood will beissuedfor theamountoftimethat the ad was down from thesite.