Companies using Billogram for their billing are the issuer of their own invoices. Each company is solely responsible for their own communication and support with their customers. If you have received a Billogram invoice and have questions about the invoice, you must therefore address the issuer of the invoice. Their contact data is shown on the invoice. 

Hint! If you have received an invoice by e-mail, you can write a notification directly to the company on the web invoice.