In what's likely to be a frustrating move for users, Microsoft is discontinuing operator billing for Windows Phones in India. The tech giant appears to have started alerting users to the move via SMS, noting that operator billing will be officially dropped as of March 30.

From the text:

Starting March 30, 2017, Microsoft will discontinue Operator Billing service for Windows phones in India. We apologize for any inconvenience this may cause.

For those unfamiliar, operator billing is a service that allows customers to charge things like apps and games from the Windows Store to their phone bill. In markets where credit or debit card penetration is low, operator billing acts as a solid alternative for such payments. There's no reason given for the drop, but it's likely to cause some frustration once it sets in.

Thanks to Ratindra for the tip!