You should receive your temporary card information by email and you will have to set up your account online. You can expect to receive a couple of emails during this process to get your account set up. Forty-eight hours after your acceptance, your advance money will be available on the virtual card. The temporary card info will work for 15 days or until you activate your physical Turbo Card, which will arrive within 5 to 10 business days of IRS acceptance and loan approval.
For more information, please see the TurboTax FAQ below:
https://ttlc.intuit.com/community/refunds/help/about-receiving-your-refund-advance/00/27510