A Segulah - From the Treasury of the Free Gift

Hello, honorable rabbi. There is the segulah of asking for any matter from the Treasury of the Free Gift: "I believe with complete faith that in the Treasury of Free Gifts there is now taking place for me, in these very moments, the salvation I need. Please specify the request and add thanks!" My question is whether this is not theft or insolence to ask in this way, because sometimes doubts arise, perhaps I do not really deserve it.