My Granddaughter bought tickets for Tim McGraw for July 22, 2018 from Online City Tickets and then saw the complaints online about them. She's worried she won't get into the concert on Sunday at Golden 1 Does anyone know where she can ck to verify

If she wants she can cancel them and go see someone else like beck.

Sorry, I do not.

If you want to be really sure just purchase new tickets from a more accredited website like Ticketmaster, and then whatever card you used to buy these tickets call your company and cancel the transaction. They'll make you jump through some hoops but should be able to get it done.