You should expect to receive a check by mail if something with wrong with your refund being deposited on a Turbo Card. If you signed up to receive your refund on a Turbo Visa card, here is more information on When you will receive your Turbo Visa Debit card.
Once the IRS accepts your tax return, it usually issues refunds within 21 days. See this FAQ regarding When your funds will be deposited on your Turbo card.
