The whole “just because x did y it’s okay to do it too” is not the right mindset for this situation.
For the record, the audio in question has broken ToS in many ways, most of which people above have already stated. For the sake of not making them look like a broken record, I don’t need to repeat them.
One thing I do feel like I need to repeat though is the fact that the audio itself is not very clear when it comes to lyrics. At the beginning of the song I have absolutely no clue what they’re saying. For all roblox knows, this could be some sort of inappropriate slur or phrase that isn’t easily found out. I don’t blame them for deleting this.
The audio also has high bass and does sort of sound like a bypassed audio in and out of itself. Roblox could just be getting mistaken because these types of audios literally all sound the same. Your best bet is to find a more clear song that has distinct lyrics, and that doesn’t reference things that break the ToS.
Edit
In regards of the refund, they don’t necessarily have to, because you DID technically break the ToS. Before uploading any audio, I recommend giving their Community Rules a read as well as the Terms of Service (although I believe that’s just how you use the Service, and not the audios themselves.)
Good luck.