Price increased to 14.99 a month in November of 2018 without notice. Appears to be the price for a family account but this is not a family account. Need corrected and refunded the extra amount I've been paying for the last 6 months.
After looking into further, my account may have been compromised at the end of November. E-mails from Spotify asking me to reset my password due to a potential compromise and this is right at the time the account changed to a family account. This may also explain why there was music on my "heavily played" playlists that I never played.