Unauthorized redemption of Apple Gift Card balance

Hello Apple Support Team,

I would like to report an incident of unauthorized use of my Apple Gift Card.

I shared my gift card code with a person who claimed they wanted to purchase it from me, but instead they redeemed the balance without my permission.

After checking from another device, I found that the card balance had already been used.

The person also sent me a screenshot showing an error message, but later I discovered that they had intentionally removed the last two characters of the code to make it appear invalid. How can I contact apple support team to provide them with details

[Re-Titled by Moderator]

Original Title: My gift card stolen