The letter, dated Oct 7 and signed by Elmar Brok and Werner Langen, referred to Ms Yingluck as "khun", a polite Thai title used for honorifics, and asked her to "accept our invitation to an exchange of views on the situation in Thailand". This follows her legal battle in the court and the now-defunct National Reform Council's rejection of the first version of the draft charter, that has delayed the the next general election by one year to 2017.