Redeeming a voucher was a nightmare. The one I just did directed me to the vendor's website (which I assume is standard operating procedure) and there was no live link. I first had to write it out on a piece of paper it was so long (like over 20 characters long). Who is the genius who decided not to include live links? Never again.
What happened after that was not Living Social's fault, but I warn you not to ever book anything from Best Tours. Whoever designed their website should be shot and the way to redeem a voucher is not intuitive at all. I finally had to give the guy at zendesk my email address and log-in information so he could do it for me. From start to finish, this consumed over an hour of a beautiful Sunday afternoon