Exactly same issue is happening with me with S20+. Even when signal bars are showing full network, whenever I receive a call, it didn't get picked up and call timer don't show up, instead Connecting... remains displayed.

I was able to get OTP option for my Amazon ICICI Credit Card and Visa Platinum Chip Credit Card. But when I tried my Debit Card only one option is there "Call Bank". If I call them they don't know how to do this. Also, there is no such option for Deb...