Hi zulka,
Thank you for your post and welcome to the Community Forum.
In response to your inquiry, would you kindly confirm that you record bills using a time billing layout? In this case, time-based billing layout-based bills will be reported on in the Sales (activity detail) report and the other reports under the Sales >> Activity of the Index to Reports. Therefore, the reports will seem to have no information to present if you are not using that layout.
Another report, such as the customer-based or sales registers, may be more appropriate if you are not utilizing that time billing layout because these reports normally operate independently from the structure of the sale.
Regarding the due date that you want to add to the report, you can try the Sales Report >> Aged Receivable (detail) and add a due date in the insert modify field (show/hide) this will show when you run a report.
I hope this helps. If you need further assistance with this, or if you have questions and concerns, please feel free to post again. We are happy to assist.
If my response has answered your enquiry, please click "Accept as Solution" to assist other users find this information.
Kind Regards,
Cel