I have an Apple store card with 14 code

Hi gonzalez289

     Welcome to the Apple community .

Re: How can I redeem a Apple store card of 14 code

See Apple Support's article: How to redeem your Apple Gift Card or App Store & iTunes gift card - Apple Support

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More info. if needed:

Seems there are a few different apple gift cards.

To find out which one you have, 

and what you can do with it, 

Apple has a support page (link below) to help.

What type of gift card do I have? – Apple Support

See the article below for what payment methods you can use in your country or region:

Payment methods that you can use with your Apple ID – Apple Support

And

If your card works with your Apple ID:

What you can buy with your Apple Gift Card or Apple Account balance – Apple Support

or

How to: Check your gift card balance – Apple Support

All the best :-)