Spotify is one of the few platforms that supports different artist profiles with the same exact name. For example, there can be multiple artists with the name Sasha each with their own page. Unlike Beatport, which requires all artists to have different names.
For this reason, it's common for music on Spotify to be placed on the WRONG profile with the same artist name.
Luckily Spotify's team is fast to help fix issues like this. To get started, head over to this Google Form and Proton's team will help you sort things out ASAP!