Why hasn't the refund appeared on my Apple Card?

Still not exactly clear, but I can make a guess that you requested a refund through Apple for the Apple TV+ service and got an approval notice. All refunds would return to the card that was used for the payment and you can review the page here for the amount of time it may take. For a credit card that could take up to 30 days, but usually you will see it sooner than that.

Check the status of a refund for apps or content that you bought from Apple - Apple Support

What says you were refunded?

Who was the merchant?

Which Apple Card? Apple Cash card, Apple Gift Card, Apple Card Mastercard or Apple Account Card? Confusing I know.

When was your refund request granted by Apple Support?

Generally, Apple refunds to Apple Cash and Apple Account in 1 to 3 business days. You should have the funds no later than end of day Tuesday.

I bought google one 2/26/25

I canceled it they said refund it this amount $ 17.99

buy my account not credited yet

I have no idea what you’re talking about. Start in the beginning please. If you’d rather talk to Apple Support, please call 1-800-MY-APPLE.