Many artists I like were signed with a now defunct record label called Tympanik Audio. Whoever got the rights to the name after the label went under stopped paying their Spotify license fees, and a large chunk of my Spotify library vanished overnight. While the albums still exist on Bandcamp, the money probably gets thrown into the void now.
Never again. The only way I can ensure my music is accessible tomorrow is to have my own copy. I buy on Bandcamp where I can, or will buy physical and rip it if I really like the album. Everything else gets ripped from Deezer automatically because there's no guarantee anything on those platforms will always be there.
Seconding this. TrueCharts has been an absolute pain and I would not wish it on my worst enemy.