A less formal way of making diplomatic representations or protests is called a démarche. The following from the US Department of State handbook sets out the typical procedures and purposes of a démarche.

Fred wished to elicit the time of the meeting from Jane.

He did not know that what he was experiencing then, that unreal, undesirous medley of ecstasy and peace, would be unrecapturable forever.

However, the later rabbinic Law demands from a Jew who wishes to return to Judaism after a flirt with another religion, to go through giyur, conversion requirements, like any Gentile who wishes to enter the Covenant of Israel.