Absurdly low prices for Bettie Cilliers Barnard painting

A bit of "mustard after the meal". I trusted someone who is a renowned art expert to sell some of my precious paintings due to unforseen circumstances and needed money quickly. The promise of quickly turned out to be 2 months and I was shocked that a reputable house like Bernardi allowed a Bettie Cilliers Barnard painting, valued at R40 000, to be auctioned off for R2000.I struggle to understand this,.because the "art expert" who I trusted, was the same dealer I bought the paintings from and valued the painting at R40 000.