My son paid a deposit to visit Botswana for last July but due to covid, was advised to rebook which he did. Due to the uncertainty of travel, he asked for the deposit refund but was refused. They said the borders are open, but understandably he is not wanting to travel. Although he's been told that he can go away anytime, he wants his money back. I understand that this is a voluntary organisation and covid is no ones fault, but why can he not get money back?