deleting song files off iPhone 6 after iOS 8.4 update

I have an iTunes Match account, I've done the recent iOS and iTunes updates, but now I can' find Match on my iTunes on my desktop--I found it listed on the right in the iTunes store, but when I clicked on it, I was asked to put in my info, click "add this computer" and nothing at all happened after that. The main question I have though is before these updates, if i purchased an album or song from the iTunes store on my iPhone 6, i could just delete the file from my phone by swiping left, and it was still on my phone via the cloud and Match--i can't figure out how to do that now since swiping left does nothing. I want to be able to keep files I purchase from my phone off of my phone (to keep my space used down), but also be able to access whenever I have wifi like i was able to before. Anyone have any ideas here or having the same issues? I know the updates are new and obvious glitches are going to happen, but i wasn't sure if anyone else had a solution.