Can't download purchases
Hello, I've been having a bit of trouble downloading my purchases from iTunes lately. I use my phone (5S, iOS 8.3) to do most of my iTunes shopping, and I just transfer it to my computer at a later date as I'm usually away from it. Anyway, my issue is that I will purchase a song from the iTunes Store and it'll begin to download only for it to completely stop halfway through, like it'll refuse, for lack of a better word, to continue the downloading process. Another issue I've had lately is that it just won't download at all. I'll buy a song, and it'll just go straight to my cloud. I will manually begin the download, and it'll prepare to download only to just stop and remain in the cloud. My account is in good standing, so I don't see what the problem could be. Is this an iOS bug? Are these corrupted files? Please and thank you for any advice you can offer.
iPhone 5s, iOS 8.3