unable to use vanilla gift card in itunes store

Check here how to use Vanilla gift card -> https://www.vanillagift.com/help

• Usage: How do I use my Vanilla Gift Card to shop in-store?

Your Vanilla eGift Card can be used to pay with digital wallets: Apply Pay, . . .

For the App Store & iTunes Store you need a Apple Gift Card or App Store & iTunes gift card, see -> App Store & iTunes gift card: Apple Gift Card - Apple (UK)