Do not trust Viagogo!
I bought a ticket for an event which is tomorrow and I have still not gotten my tickets and not even a reply to my emails to Viagogo! What's the point of putting a phone number on the website if you don't intend to have human being answering them? And if you can't deliver the tickets, then have the courtesy to tell me early enough so that I can find ticket elsewhere (and obviously not through your website again!). Wonder why Viagogo is still in business?!