the woes of changing your name, -- I guess (negative)@star This looks like the Post&DHL app. My solution: I made a new account with my correct name. It helped that I made the old account with my deadname email address, so I could just use my chosenname email address for the new account.
the woes of changing your name, -- I guess (negative)@star ich hab damals einfach einen neuen Account erstellt, mit dem Support zu schreiben war mir zu Blöd :3