Trending @Infosys; AWS voucher, plz help

I have applied for AWS voucher on Cobalt to attempt the external Aws Cloud Practitioner, but i recieved a mail saying plz confirm the date and will you be updating the result on lex, so i replied back on that also i have filled the date already in Voucher as 19th three days back. Dint revived any voucher yet. Does anyone know when will i get voucher or do i need to do anything?