WPML issue with fields setup in admin

Hi,

I am working on a site using wpml to support two languages and everything is running fine except:

How can I setup the translation of
Message to display when a card has been sent or scheduled
and
Message to display when a confirmation mail has been sent
which are setup in wp-greet admin?

After a quick look at plugin’s code, I was under the impression that if these two fields were left blank in the admin, then the default strings would be used instead (which I know how to translate). However, this is not the case.

Any ideas?
(everything wordpress is latest version)

Thanks in advance,
Kostas