1. Inquire through the mobile APP: download the mobile APP of the operator, register or log in the account, click the options such as "Bill Inquiry" or "My Bill", and select the month to inquire, then you can inquire about the phone bill details.
2. Inquire through official website: Open the operator official website, log in to the account, click the options such as "Bill Inquiry" or "My Bill", and select the month to inquire, then you can inquire about the phone bill details.
3. Inquire through customer service phone: Call the operator's customer service phone and follow the voice prompts to select options such as "bill inquiry".