I cannot use my credit card in the iTunes Store

See the following Apple articles:

Payment methods you can use with your Apple ID

Payment methods you can use with your Apple ID – Apple Support (UK)

About billing for Apple subscriptions and media products in India

About billing for Apple subscriptions and media products in India - Apple Support

India

•           Apple ID balance (from adding funds)

•           Net Banking (adding funds only)

•           UPI (adding funds only)

You can use / pay with your Apple ID balance, see: Add money to your Apple ID balance

Add money to your Apple ID balance - Apple Support (IN)

Hello ~ What happens when you try to use it? Messages?

~Katana-San~

Hello ~ Have you another payment method to try? Perhaps an Apple gift card?

~Katana-San~