See my previously paid invoices or credits

When an invoice is sent, a record of it is placed in the invoices section for your workspace. You can get there by selecting "Settings", choosing the Workspace you would like to see the invoices for, and then selecting "Invoices".

Note: Invoices are for subscription services that, for example, occur monthly or yearly.

For pay as you go usage, charged on each upload, or when uploads exceed a transcription, you will see your credit adjustments in the "Adjustments" section. 

Note: you may have to expand the section to load the line items.