Prob in mailer extension and multilingual pages

Hi guys!,

I added the extension mailer in my site. I also have multilingual pages
on it. I started building the english version then when I’m about to
finish in the japanese version, I noticed that the Thank you page which
is a child of my Contact Us page is always going to the english page not
the japanese one. I tried changing my redirect_to on the mailer content.
I added <r:translate en="-en" ja="-ja"/>. It still didn’t worked. Can
anyone tell me how to solve this?.

Thank you in Advance! God Bless!