Song I did not purchase says purchased and cannot download

I am having a problem where a song I did not purchase says purchased next to it and I am unable to download it or actually purchase it. The purchased sign appeared next to the song after I bought a different song on the same album on my iPhone 6. There are two versions of the album: a censored and uncensored version. When I bought a song that wasn't originally explicit on the censored album, the version on the uncensored album says purchased next to it and prevents me from buying it. I suspect this is related somehow but the song I want to buy says purchased next to it on both versions of the album even though I did not buy it in any way, shape, or form. The song still says purchased next to it on my pc and it does not show up in the non-downloaded purchased section of either systems. I did check if iTunes charged me for it and they did not.