My fiancé overstayed his visa in another country (South Africa) when we vacationed together by a matter of hours. They prohibited him from visiting South Africa for one year and stamped it in his visa. It has been over a year.
My fiancé is from Mozambique and his US Embassy interview needs to be in South Africa.
My question is, can they deny his visa because of this? Is there anything he can do to prepare for the interview?