All the normal messages come up in the correct language when people subscribe but I am getting some odd messages in English on the German site. Where do these messages come from? It comes up on my clients browser, I can't seem to recreate this behaviour.
https://www.dropbox.com/s/9n6ryr0bie6i9qr/image007.png?dl=0
"You are already subscribed to our newsletter." <- this has classes so I can style it no problem
"If you wish to change your subscription click here" <- no classes

I did see that the "default language" of the lists in CMC is set as "en" but I can't find anywhere to change this in the Component or even on Mailchimp.
https://www.dropbox.com/s/1bpxixwj6ntakxu/Screenshot%202015-01-06%2014.31.54.png?dl=0
Thanks for any help,
Ed