After 3 hours of futile online attempts to change a pending DVD order that is back ordered, I finally called NBC at Rockefeller Center, NYC, and was passed through three different departments. I finally landed at the Information Desk & Tours Desk where a pleasant young lady gave me the seemingly "coveted" Toll-free number to NBC Universal Store Online Customer Service--here it is and please share with others (who are banging their heads against a wall)
When you dial this number, you will get an automated response which asks for your Order number, etc; after you get the automated status of your order, say loudly--"Representative!'
That should take you to a "breathing" person!! I make no promises after that, but will have jumped a hurdle that remains insurmountable for many!