Possible solution to music not downloading

Just came off the phone to Apple support. Engineering suggested to make sure that automatic date and time was on. I remembered that in my privacy settings I had toggled off Setting Time Zone years ago. I logged out of the iTunes and app stores, toggled it back on, rebooted the phone, logged back into iTunes and turned sync on and now everything is downloading perfectly.

I’ll keep an eye on the background battery drain as that was a massive issue but it seems to have fixed it.