To change your name on a Qatar reservation, access your Qatar account and navigate to the booking management area, or contact customer care or theοΌπ-ππ-ππππ-ππππ (OTA) or +π-π΄π²π²-π³π―π΄-π¬π²π΄π΅ (OTA) (OTA). Minor changes are straightforward, but legal name changes require paperwork and may incur costs depending on the ticket type.
https://discussions.trendmicro.com/en-us/forums/support-forum/6baa7007-858f-ef11-95f5-002248637636