You have the opportunity to send your petition and to be prayed over by the Community of Caritas and then have your petition placed in the presence of Our Lady Queen of Peace of Medjugorje.
Our Lady said on November 24, 1988 (THANKSGIVING DAY):
While some may think that you prefer to say your prayers in your heart, before you dismiss completely the thought of writing them down, we invite you to take a few moments in which Our Lady actually encouraged in Her Medjugorje apparitions the writing out of petitions. Visit this link to read more about how Our Lady of Medjugorje has encouraged the writing of petitions.
You can also send your petition by visiting this link, and you can find out where your petition will go by visiting this page.