I am sorry, but you did not subscribe to MP3 Tunes from our website, not from WinCustomize.com.
You apparently have us confused with someone else.
Now, if you have allowed your WC subscription to lapse, you may have responded to an AD on this site, by which you may have subscribed to MP3 Tunes. In that case, you would need to contact them at their website.
I would link you, but I fear it may be deemed as spam.