Not an Italian wedding I surmise.
At a NY Italian weeding people bring cash gifts. Just watch the godfather wedding scene where Paulie Gatto says
“ Thirty, forty grand. In small bills cash, in that little silk purse. Madon’, if this was somebody else’s wedding, sfortunato!”
If they had asked for cash gifts in lieu of regular (usually, crappy) gifts, that's one thing. But asking for a specific dollar amount for the "privilege" to attend....uh, no.