I bought 4 tickets to see Elton John through Viagogo, paying many times face value, for a birthday gift. The day before the event I called to ask where they were, and was told that they had not turned up. At the last minute they found me 4 replacements but these were the worst and cheapest tickets in the venue. The Viagogo guarantee promises to get equivalent tickets. These certainly were not, and had a face value less than half my original tickets. It would have seemed fair to me to reimburse half the cost, but they refused to do so. The guarantee is NOT a guarantee. The risk of tickets not turning up is the buyers risk. Beware