To get the Turbo Visa Debit Card, you'll need to select it when you are asked how would you like to receive your refund.
Please see the below TurboTax FAQ for more information on getting your refund on a Turbo Visa Debit Card:
https://ttlc.intuit.com/community/refunds/help/how-to-get-your-tax-refund-on-a-turbo-prepaid-visa-card/00/27310