How do I recover missing two codes of my Apple Gift Card?

See the following from If you can't redeem your Apple Gift Card, App Store Card, or App Store & iTunes Gift Card - Apple Support

Code is unreadable

If you can't read the code on the back of your card because it's scratched or damaged, contact Apple Support.

and

Contact Apple Support

You might need to provide:

• An image of the full front and back of your card.
• A sales receipt showing when your card was purchased.
• The serial number from your card. 

Contact Apple Support

Hello~ See *FoxFifh’s* post which is the Top Ranking reply in this thread.

~Katana-San~

I mistakenly scratch of two code on my $300 Apple Card