Gift card not received via email

Make sure it didn't get directed to junk mail.

Click on this link about re-sending gifts --> Gift apps, media, and more from Apple - Apple Support

- "If you sent an iTunes Gift and your recipient can't find the link to redeem it, you can resend them the gift from your iPhone, iPad, or iPod touch or your computer. When you resend an iTunes Gift, the recipient will receive another email with a link to redeem the gift."

We are not Apple Support. We are users like you helping other users and have zero access to your accounts of information. You need to do as I suggested earlier.