Purchased songs won't transfer from my iPhone to iTunes Library on PC
I have more than 400 songs on my iPhone that I've purchased in the iTunes store. They show up on my phone as purchased, but not when I go into my account on the iTunes App I've downloaded on my PC.
Only 45 songs show up as purchased. I've tried transferring the songs from my phone to the PC, but get a message that 'this computer is not authorized'. I've authorized the computer in the account tab, but it doesn't make a difference.
I'm pretty frustrated, as I've spent a lot of money purchasing these songs and now can't transfer them.
Windows, Windows 10