From 2025, the invoices and subscription settings can be found in the conventional ChatGPT settings!

Left mouse button on the circle with the initials, Settings, click on Manage at the bottom of the subscription under Payment, Manage at the top leads to the subscription management.

Within ChatGPT, click on the Add team workspace area

Click Manage subscription.

Click on the desired invoice line.

Finally, the invoice receipt can be downloaded.

In the context menu, as of 2024/09 to be found at the top right, select Manage workspace

The individual invoices can be selected in the Billing menu area.