I bought tickets four months in advance from Northside and paid by credit card. They sent confirmation that the tickets were reserved and said they would mail them two to three weeks before the show "Wicked." Four days before the show, they called and said the tickets were double booked.
They said they would keep looking and call me on Thursday, which they did not do. On Saturday, three hours before the performance, they called and said they found tickets. The problem is I don't live in the city, and I did not have time to get to the show at that late notice. They refused to refund my money, even though they had not called by the time they said they would.
They fell back on a no refund policy. Very convenient for them. I'd be willing to bet the tickets don't exist, especially when you read the other reviews on this site.
In my opinion, based on my experience, this is a *** artist operation. If you're smart, buy somewhere else.