New Apple gift card says pin is invalid

See this Apple article:  If you can't redeem your Apple Gift Card or App Store & iTunes Gift Card

If you can't redeem your Apple Gift Card or App Store & iTunes Gift Card - Apple Support

You can't redeem Apple Gift Cards or App Store & iTunes Gift Cards outside the country or region of purchase. For example, if you bought an App Store & iTunes Gift Card in France, you can't redeem it in the App Store in the United States.

• If you need more help, contact Apple Support.

See also :

About Gift Card Scams

About Gift Card Scams - Official Apple Support

Terms and Conditions for Apple Gift Cards and Codes, Apple Account Associated Balance, and Content Codes

Legal - iTunes Gift Cards and Codes - Apple

I used a new gift card but it says it's invald please make sure

See my previous post.