Can I make changes to a contract or an invoice? Frankfurt Rights 20 October 2021 10:31 Updated Follow No, you cannot make any changes to a contract or invoice after you have submitted an inquiry. Please make sure that all of the information is correct before submission. How do I change my address? How do I change my billing address? Related articles How do I pay for a transaction? How do I change my address? When can I download the manuscript? A price has been generated for me – can I negotiate this price? What kind of copyright note do I need to make?