You can't apply for it. You can only get it if it's offered to you when you file your tax return. See the FAQ at the link below for details. Note that the FAQ says the following.

"The Refund Advance offer is not available to all customers at this time. Unfortunately, there is no way to self-select into the offer."

About Refund Advance

You will not be eligible for the offer if:

(1) your physical address is located outside of the United States, a US territory, a PO box or a prison address,

(2) your physical address  or the tax returns you are filing are in one of the following states: IL, NC, or VT

(3) you are less than 18 years old,

(4) the tax return is filed on behalf of a deceased person,

(5) you are filing certain IRS Forms, 

(6) your expected refund amount is less than $500, or

(7) you are using any of our tax products where a professional is completing your taxes.

You also must be approved by Green Dot to receive a Turbo® Visa® Debit Card.

https://ttlc.intuit.com/community/refunds/help/important-offer-details-and-disclosures-about-refund-...

And see this TurboTax support FAQ - https://ttlc.intuit.com/community/tax-topics/help/what-are-reasons-i-might-not-qualify-for-refund-ad...

I have the option for the refund advance but everytime I try to click it it says we have run into a sang. 

Sorry snag

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