Updates. Barely. Called the PC office again 2 weeks after I first called. My PO was out for the holiday weekend, so I left her a message. Haven't yet heard back from her. I called again two days ago, another week later. The lady I talked to said that I should hear something in 1 to 3 or 4 weeks.
Le sigh. If I end up going to Cameroon or Togo, the latest I could hear would be August 6th. Still a ways away. I looked at the Cameroon & Togo PC groups on facebook, there are a number of people already invited to both. Many of them are from the group that didn't go to Mauritania.

Will there be room for me? Will I wait longer?

Bark.