Purchase detail not reflected in GSTR2A download file and GSTR2B

As per Suppler they hsve fillled data in GSTR1 and filled GSTR3B accordingly. As a purchase , i can see data in GSTR2A View but when i download its not there.Also its not visible in GSTR2B and next month GSTRB. Could you pleass suggest what can be actual reason.And how can i veryfy whether supplier really filed looking at my fGSTIN NO OR firm nane in supplier detsil.