So at the end of the sonic live event, apparently we got a tails costume, but it wasnt in the ring shop or in anyones locker, was this a mistake or something?
Hey there 
Thanks for submitting a bug report.
Due to the vast number of costumes that needed to be given out, they were given out within a few hours after the event.
If you still haven’t received yours, please contact our support team.
Have a great day 