Verification required

I’m also running into the same issue on my Samsung TV.

Verification required as in a loop. I’m in India so I cannot add a credit card for automatic payment even if I wanted to as Apple doesn’t support it.

I have sufficient Apple ID balance to cover the subscription amount.

How do I get this working?

As it is a subscription service, signing up requires a valid payment method linked to the Apple ID account. That payment method should support automatic and periodical charges. As a verification test Apple may do a 0.00 charge or other minimal reservation to that payment method.

To edit your Apple ID’s payment method, if without Apple device, visit: Manage your Apple ID - Apple.

UPI should be supported for users in India with their Apple ID account set to that region.

Payment methods that you can use with your Apple ID (by country) - Apple Support

As I’m in a different country, I wouldn’t know more details. Contact Apple for more assistance: Subscriptions and Billing - Official Apple Support

I have used upi and it's not working, can anyone help

To edit your Apple ID’s payment method, if without Apple device, visit the website: Manage your Apple ID - Apple. You can edit the payment method details there.