Just an FYI that you absolutely CAN post a link to a tour operator's Facebook presence....it is only ROLL CALLS on FB that cannot be posted.
That said, I've personally taken Heidi's full day tour and I'll tell you it was a very long day! I know (from following her on FB) that she has just lost her beloved pup Buddy, who traveled with her on every single tour so she may be delayed in responding.