Once logged into your TickPick account, go to “my account” and “current listings.” From there, on the far right, there will be blue button labeled “Edit” which will take you to a page you can update your price or delete the listing.
You can double check this was removed by refreshing the page and checking your current listings. From the TickPick app, if you go to your account and then “listings,” click on the specific listing and it will give you an option to “delete listing”.