One of its main hubs is the Qatar Airways Lagos Office in Nigeria. For the most recent information about their office in Lagos, it is recommended to visit their official website or get in touch with customer support, since exact addresses and contact details are prone to change. They typically offer services including ticketing, bookings, and customer support. Please ask for further information if you require it!
https://www.globalairlinesoffice.com/qatar-airways/qatar-airways-lagos-office-in-nigeria/