idfc first bank credit card

I'm facing errors on bhim upi, paytm. After entering all the details otp & setting upi pin, generic errors are showing, in phonePe I'm able to set the pin, & got the confirmation Sms, but still it's not reflecting on PhonePe & on any other Apps. When i called Customer Care: first she said you...

Hello, I have IDFC bank account and millennia credit card for long. This card not so useful for me. Is it possible to close this card then reapply for better card? Please share your experience or advice. If any of you have any contact , it will be good for me before closing. Any IDFC bank...