EIC stands for Earned Income Credit. You can get earned income credit using the Free Edition--if you are eligible for EIC it is added automatically no matter what version you use. If you are not getting EIC, it is not because of the version of the software you used. Did you check line 27 of your Form 1040? If you are getting EIC it will be on line 27.
https://ttlc.intuit.com/questions/1899157-what-are-the-qualifications-for-the-earned-income-credit-e...
https://www.irs.gov/credits-deductions/individuals/earned-income-tax-credit/use-the-eitc-assistan
Not sure what other benefits you expected from using Deluxe--you have not mentioned what else you thought Deluxe could do to increase your refund.
If you have already used Deluxe and filed the return, you will not get a refund from them for the software, although you can try having a conversation with customer support if you want to.
No one in the user forum can resolve a billing issue. If you have a question about your TurboTax fees or billing, make sure you use the word “billing” in your request for help. Do not use the word “refund.”
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
