You won't be issued a ltf card on a chargeable card.
Ltf cards issued only on ltf cards during conversion.
Don't try this you'll end up paying fees for 3 cards.
1.Headcreditcards@icicibank.com
2.Yes about a month ago
3. 1 variant per week, as I already knew how to get other variants LTF. I know this even before getting LTF coral.
All Core cards share a single account
Mmt cards share a separate account
And Apay card share a seperate account
Mine card also shares a seperate account in CIBIL report.