How can a client update the "Bill To" information in invoices received?

Clients who are ProZ.com members have the option to link their ProZ.com account with invoices received from each provider. See this FAQ for details.

This causes the "Bill To" information in those invoices to come directly from the client's ProZ.com profile. These billing details are therefore updated automatically whenever the client changes it profile contact information. Note that this means the client's profile contact information will be disclosed to that provider.