DSV bad service delivery of MTN phone

very bad service from DSV. Urgent delivery needed but no help: Mtn phone has been delivered to them, it has been confirmed that it is ready for delivery account holder (my husband) must contact them to arrange delivery. My husband contacts them to arrange for delivery he gets told they cannot update his details as he is not phoning from the upgrade number (my number). Tell him to wait for someone to phone him. we have advised this is an urgent delivery needed asap. no one has contacted him. I don't understand why delivery has to take so long. contact us and deliver asap please. ( this phone is meant for my sons bday tomorrow.)