I've been meaning to do this for awhile! After being basenji-less for over 20 years, we recently adopted a 9 yr old girl from BRAT. Pippi is wonderful and we feel so lucky to have found her.
I agree with the others that this is not a common practice among BCOA breeders. I am sorry that this happened to you and yes, you should get your deposit back.
Welcome and kudos to you for helping with rescues! It sounds like Kowboy was a great introuction to the breed. I'm sorry for your loss of him and Indy. this is a great place to share and keep memories alive. I'll keep my fingers crossed for a speedy relocation back to your family in CA!