For your privacy, Mercato uses masked phone numbers when you communicate with couriers through our app and website. If you place a call or send a text message to the person who is dropping off your order, it will be done using a temporary masked phone number. This number will be good for 12 hours after you are assigned a courier. After that time, the number will be terminated. If you still have questions after the 12 hour period, please contact Mercato customer support for assistance.