It's not just electricity and water. With any balance you have in belo, you can pay for:

🟣 Credit cards: Visa, Mastercard, American Express, etc.
🟣 Universities: UADE, UP, Di Tella, UM, and more.
🟣 The monotributo (and VEPs)
🟣 Prepaid health plans: OSDE, Swiss Medical, Medifé, etc.
🟣 Insurance: La Caja, Allianz, Rivadavia...
🟣 Internet: Movistar, Personal, Claro...
🟣 Cable TV: Telecentro, Flow, Direct TV...

And of course: household electricity, water, and gas bills as well.