Please help !Got instruction letter after I601 waiver approved need renew document for k1

[shugo 0]

Hi , I got a instruction letter from consulate .my fiancée had his k1 visa interview last year April so, he need renew his documents and update the information on the DS 260 ,

Do we need a visa bill from NVS ? How to contact ? By mail or phone ? Please share some experience .

Thank you so much !

[shugo 0]

Hi :

My fiancée's I-601 waiver approved , I got instruction letter because his k1 visa first interview was April last year , we have to renew and update document for Seconed interview , I am confused because our case is k-1 so , he never filled out Ds260 we only filled out DS 160 , what. Should I do ? Is this a mistake on the instruction letter ? Could you please advance me ? Thank you so much