Wrong Contact Number

I don't know why, how come this week there was so many people called in to ask us for quotation on rivets!! I think the supplier of this rivets put the wrong contact number on their advertisement or leaflet where those people who saw the contact number called our office number thinking that we are the supplier. On average basis, each hours, there will be 2 calls asking for quotation! Urgh! What a headache telling them we are not in this kind of business and you get the wrong number!