How To Fix iTunes Match in iOS 7
After looking through other forums, I have found this soultion which seems to work well.
Courtesy of metmaestro
1) ON your iPhone/iPad: Go to Settings: iTunes & App Store.
Tap on your Apple ID, Sign Out, iTunes Match will be off.
2) On your iPhone/iPad go to Settings: Music: Look at the iTunes Match slider, it should be off.
If not, turn it off.
3) On your Mac/PC in iTunes, go Store (in the file menu bar above) and tap Sign Out.
4) Restart your iPhone/iPad by pressing the Home Button and the Sleep/Wake button (at the top) at the same time until the Apple icon appears.
Hold it for about 10-20 seconds until the Apple icon appears again.
5) Go back to your Mac/PC in iTunes, go Store (in the file menu bar above) and Sign In, Turn On iTunes Match, and wait for it to complete.
6) Go to settings on your iPhone, tap iTunes & App Store. Sign In with your Apple ID and password, turn on iTunes Match Slider.
Tap ENABLE.
7) Switch SHOW ALL Music to be ON.
8) Next go to Settings, tap on Music, the iTunes Match slider should be on.
If not, turn it on.
9) Finally, go into the Music App on your iPhone/iPad. Loading iTunes Match will start processing with a Blue Line, matching your iTunes Library.
Hope this helps!
iPhone 5s, iOS 7.0.2