It doesn't ask me that. Are you using the same number I provided above? I've never been asked for the last 4 digits. The first thing it asks me is for the full 16 digits of the card, and says if I don't have the number to enter my SSN--but DON'T enter it there. Is that where you entered SSN--if so DON'T! If I ignore that and keep listening it says "to report a card lost, stolen, or never received" and so on as I mentioned above. So don't enter anything at all until you hear "to report a card lost, stolen, or never received." It will later ask for your SSN, but only enter one after you select "never received".
You didn't answer my question about what product you used for TurboTax this year. If you used a paid edition, you can phone TurboTax Support on Monday and let them figure out how you can contact the Turbo Card. Or I can ask a Moderator to assist you in this thread on Monday.
