For your concerts to appear on Spotify, you'll need to add them to a list on the website of one of their ticketing partners:
AXS
Bandsintown
DICE
Eventbrite
FNAC
Gigantic
NoCap
nugs.net
Resident Advisor
See Tickets
StageIt
Ticketek
Ticketmaster
Tixr
Xceed
Eplus (solo en Japón)