Some may have received an offer for a discount for TurboTax products from a third party such as their bank or a financial advisor. To apply these discounts, a link has been provided in an email or from a separate website. If this is the case, you'll need to "sign-in" to your TurboTax return from the link you were provided in order to apply the discount.
@Pkristoffy Regretfully, there are not any promotions available right now. Promotional emails have an expiration date, after which they lose their validity.