Write to [email protected]. Include the page path and the sentence you think is wrong. If a price moved after 2026-10-11, say what the vendor page shows now and the day you looked.
There is no web form. Mail is the whole contact path, so a message is not trapped in a widget.
What this mailbox cannot do
It cannot refund a charge from HeyGen, Surfer, a broker, or any other vendor. It cannot reset a vendor password or see your vendor account. Those requests belong on the vendor's own support page.
It also cannot add a score, a testimonial, or a return figure because someone asks. Those stay off the site until the method pages allow them.