It appears that Seatgeek sells tickets it does not confidently have access to sell. Per a service rep "Listings update every few minutes, but sometimes that is not fast enough to keep up with situations where demand is unusually high. A listing might still show as available, even though it was just purchased". Hence, a technology limitation (and/or cost choice by seatgeek) results in a subset of purchasers being notified several minutes later (if they check their e-mail), that the purchase could not be completed and the $$ will be refunded. This happened to me twice today - the second attempt was via a seatgeek rep sending me a link to buy the tickets!
The above pain point is only part of the problem. Seatgeek will do nothing to get you comparable tickets for the same event. There is zero attempt to resolve. Tickets went up in price, too bad, you are getting your money back, try again. Given the significant seatgeek fee charged per ticket, they can easily resolve these situations but appear to choose not to
Seatgeek is no longer a little company. They manage their technology choices as well as the rules of their marketplace. Choices matter. Very disappointing