It'd likely help being able to hear it but a big thing you have to take into consideration these days is the possibility you're getting something made with ai, even music
I personally am not familiar with the tells to identify ai music but you could always search online to see what resources are available to identify, though be wary of certain ai detectors as those also often use certain ai to detect and thus will give false positives or negatives.
You could also try asking the person you hired on fivver if there are still open channels for communication and try to see how they put it together like what DAW they're using (ableton, fl studio,, garage band, etc) or maybe screenshots of project files that would show how they put it together and then personally checking that ui yourself if possible.
I mention the ai thing tho coz it reminds me of a song that went viral recently that was a choir version of the thong song but it's specifically made with one of those ai music apps like suno or something like that but sounds of reasonably decent quality (otherwise it wouldnt have blown up).
My point being it's just one of those things to be wary of and if it turns out you were scammed I hope you're able to be properly compensated or get your money back
