Thanks for your reply azstar.
I only have an e-ticket, and on that, under 'fare,' it reads: 'economy restricted.'
Re taking it to the airline office, where do I find their address or number? I went online and found this?
http://www.united.com/web/en-US/cont...r/default.aspx
Ah....editing this as just seen another bit of the e-ticket that says under air fare: 'not available.' Is that what you meant?