Ticket and order customer service
1-800-653-8000US · Monday–Friday, 9 a.m.–11:30 p.m.; Saturday, 9 a.m.–10 p.m.; Sunday, 9 a.m.–9 p.m. EST
Source explicitly says ticket purchases are online or in the app. Do not advertise this as a ticket-purchase phone line. Chat is available after signing into an order.