The provided source material does not contain information regarding a city named Pepe in Botswana. According to the available documentation, "Pepe" is primarily identified as a pet form of the Spanish and Portuguese name José (Joseph). In Brazil, it is commonly used as a nickname for the name Pedro (Peter).
Additionally, Pepe serves as both a surname and a male given name in various linguistic contexts. There is no information available in the source to confirm its status as a geographical location or city.