Sounds like you have an eMusic membership plan! To use your credits to add mo’ music to your collection, you have two options:
Purchase an album: click next to the album
Purchase a track: Click the purchase button next to the track title on a given album page.
Once you purchase, your music is instantly available for streaming through your My Music library on the website or app. Or, you can opt to download the album or track to your computer or device (to avoid any unwanted streaming charges).
On an iPhone? No problem! Simply click the “add to wish list” button and then purchase from your wish list on www.emusic.com or Android device.