I need to add a return leg and apply the voucher. I just called 1-800-247-9297, which I believe is the main USA call center. But they're telling me that my need is too complicated, and to call the executive club number at 1-800-247-9297 , I'm familiar with that number - the agents are great. But it's not open after 8pm EST. Does anyone have a recommendation for another number to use who can help with what I'm trying to do.