My guess is that the Ace Ticket sales reps on the phone get a commission, and that Ace Ticket purposely doesn't include the seat numbers online so that you have an incentive to wait until they're open and call the sales rep on the phone.
What is 'Collective Bargaining'. Collective bargaining is the process of negotiating the terms of employment between an employer and a group of workers.
Free Collective Bargaining. Free collective bargaining is the second basic principle of the NLRA. The act leaves the decision whether to organize entirely to employees. Once they do select a bargaining representative, the NLRA requires the employer to bargain in good faith with the representative of the employees.