Ethan Martin told CBS 6 that he purchased two tickets for one of Grande's three Eternal Sunshine Tour shows in Montreal next July during the artist presale in early September.

Monday, he received an email that his tickets were being canceled after Ticketmaster "ran an extensive review of all purchases" and his order was flagged for violating the site's terms of use.

"This may have been due to exceeding the ticket purchase limits set by the tour and/or providing conflicting account information," the email from Ticketmaster reads. In his numerous attempts to contact Ticketmaster for an explanation, Martin says he's been given different answers.

"I've gone through several levels of escalation on support. The first level of escalation told me that I exceeded the ticket purchase limit. I bou

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