Get it in written via mail. If you get that lucky go ahead activate card. If not DO NOT proceed. SBI card will raise hands. You won't be able to connect with anyone with SOP answers.
PS: Lastly it's your wish. I don't want to influence you into something that you don't want to do.
Don't do the mistake of another number. Folks in community have done it but when you desperately need the card. Because irregularities in cibil can get your applications rejected in future by companies.
Go for what you need/like. Our requirements might not be same.
I was in same case as you. It's been 3 yrs to it though. Back then I closed the old one and applied new one physically.
Now since SBI card is offering multiple cards you can apply second one.
Bro the same happened with me yesterday. They asked me for income documents which I don't mind sharing but the mail clearly said BPCL card whereas my application was clearly for cashback card. They do this to stick people cards. I did not proceed and asked to mail properly.
You can try...
There's a flip/switch card option with SBI. Call the customer care and get it done. For now Flip is not possible to Cashback cards. Works for rest. You will be charged annual fees accordingly or wait out a year and then flip.
Same goes with me. The cards are visible but with less info than the cards active. In your case just ask for the NOC.
Rest members please let me know if you too can see the deactivated cards in account.