I was holding hdfc regalia ltf since 2015 but almost never used it except lounge access. Also, no other relationship with hdfc till date. Applied for dcb ltf under alumni offer (now discontinued) in Nov 2023 and got the same as the upgrade from regalia. Same spends with dcb, minimally used it in last 6-7 months. My main cards till date were axis ace and icici amazon pay.
In Apr 2024, requested limit increase of dcb from 6.5 lakhs to 9.4 lakhs based on itr and sound salary slips. Wrote to grievance email of hdfc to upgrade to infinia this year multiple times, but got denied.
Just 10 days back, I again emailed them citing more than 8 lakhs spends in last 8 months (they were originally asking for 6 months period) from axis ace and icici amazon pay cards. They approved infinia based on these spends.