Opened Jupiter account same day joined the waitlist and after 7 days got the card with 3 lacs limit, wait list number was around 289000.
They are not following the wait list and offering card randomly, may be they are doing some background checks for Jupiter customers
This happened with you because their buggy card application system,
That system not issuing proper credit limit and deserving card to everyone.
Many getting higher variant of cards with low income and many gettIng basic card even their income is higher.
As per their customer support their...
Once the Joining fee is charged they will ask you to pay the fee first then they will entertain your card closure request. Better close the card. Don't trust them