When listening on Deezer, last.fm registers it as "Sammy Rae The Friends". I've never noticed until now and also found the correct one "Sammy Rae & The Friends". Is there any way to fix this or do I just have to live with my scrobbles being labelled incorrectly?
p.s. There are also a lot more unnecessary "artists" for all features ("... ft. XY") they did, but I guess that can't be helped.
It's one of the known issues with Deezer's internal scrobbling option that they don't submit ampersands in their scrobbles. See also the related FAQ:
As a Pro user you could edit your scrobbles in your library and also enable the auto-edit feature, so you only have to do it once, but for each track. Or use external scrobbling apps instead of their internal option. Using the bulk scrobble edit script allows editing artist and album names, see this FAQ: