Your baggage allowance is determined by the marketing carrier. I presume that to be UA. In that case, your allowance should be 3 bags up to 32 kg. each.

You can find this on the UA website, either by pulling up your itinerary or simply entering the relevant data into the online calculator.

https://www.united.com/web/en-US/con...d-baggage.aspx

The fact that your e-ticket receipt shows something else suggests that something is wrong or that UA is not the marketing carrier. Even on an AC-marketed ticket as *G you would receive one bag.

If you supply exact details, someone here can explain the exact allowance.