It generally takes 15 days from the day of your billing date to get the voucher
You can use the voucher within 9 months from the day it was credited to your account
You will have an option to redeem within the first 6 months, whenever you redeem it, you will have exactly 90 days to do the...
Get it in writing, as simple as that, if you are giving them something and they confirm something, ask them to give it in writing on an email or on paper
It will be LTF unless they explicitly mention that it relies on your Privy status which is generally not the case with Kotak.
There are a very few cards which are converted into chargeable cards, like Burgundy private.
Just take it in writing that it is LTF.