Without knowing the context of the alleged “request” I couldn’t say. First, you would need to determine if this “request” attributed to the Virgin Mary is part of an approved apparition. If the apparition is not approved by the Church, I recommend ignoring it. If it is part of an approved apparition, then there should be some details about it available, such as the diocese in which the apparition occurred. You could then contact the diocese in question and ask for clarification from the diocesan staff.
