Malawi: Roofhouse Advertising appointed Zain/Airtel account[Gregory Gondwe] Roofhouse Advertising has taken over the Zain Malawi account from ZK Advertising, which will soon rebrand to Bharti Airtel Malawi. According to Frank Phiri, ZK Advertising PR strategist, the ZK group has managed the Celtel/Zain account since 2005 across Africa. |