Indigo Airlines — GST invoice not received

Address: 5 M.I.G. Trilok Nagar, near water tank, at Juhi beauty parlour, itawa, ujjain road, dewas

I booked round trip flight from Indore to Chennai on 23/10/2024 (PNR: JQFTQB AND N169NM). GST number was provided while booking these tickets and I was expecting GST invoice over mail in 30days of ticket booking. I tried getting it generated from your website but no luck after multiple attempt. Inspite of providing all details, it showed some information is incorrect. Support of indigo was also not helpful for me.