Federal Bank Won't Give Me a Scapia Credit Card... Because I Already Bank With Them?

I have savings account with Federal Bank via Jupiter and Fi. I saw Scapia restarted their credit card program. So applied and got the message that I am already a customer. Federal Bank has a one card policy. So, I believed it was a mistake and mailed them. Nope! It seems if you have a savings account, you won't get the Scapia Card. I don't get such idiotic rules of our banks. I have attached the mail screenshot