1. Contact the child's defense attorney: The attorney can provide information on the progress of the case and explain the reasons for the delay.
2. Contact the local public security bureau: check the progress of the case and find out whether there are other procedures that need to be completed.
3. Patience: The judicial process may take time to process the case, but you can follow up regularly to ensure your child receives appropriate legal aid.
Summary: The prison terms for Internet fraud vary from case to case. To learn about the progress of your child's case, you can contact his detention center or the local court. If there is no news from me for a long time, you can consult a defense lawyer or the local public security bureau. Please note that the above answers are for general guidance only and are not legal advice.