Dave Meltzer noted in the Daily Update on F4Wonline.com that none of the shows were sold out as of the writing on Friday evening.
Regarding Double or Nothing, it did the best out of the three shows as about 6,000 tickets sold with probably more sold after the publishing of the article.
AXS had Double Or Nothing regular tickets listed from $42.15 – $331. there are some re-sale tickets available for up to $1,700. You can see a screenshot of the map for available and sold tickets here:
The event will take place on Saturday, May 23 in Las Vegas, Nevada at the MGM Grand Garden Arena. No matches have been announced for the show.