Welcome to Nepacrossroads.
Your local dealer is probably very busy with fall deliveries. Keep trying, maybe try them first thing in the morning. Tell them you want to schedule a delivery. If all else fails, make a personal visit.
How far are you from St. Albans? Black Diamond Coal Co. is located at the South end of town.
Oakwood Farms in Essex Junction was selling bagged coal last season, although I don't know if they still handle it.