I had deduction of 17.99 apple I tune which I didn’t initiated

1.

See the following Apple articles:

View your purchase history for the App Store, iTunes Store, and other Apple media services

View your purchase history for the App Store, iTunes Store, and other Apple media services - Apple Support

How apps, content, and subscriptions from Apple are billed

How apps, content, and subscriptions from Apple are billed - Apple Support

If you want to cancel a subscription from Apple

If you want to cancel a subscription from Apple - Apple Support

If the subscription that you want to cancel is not listed

If you want to cancel a subscription from Apple - Apple Support

2.

See also ⤵️ 

Identify legitimate emails from the App Store or iTunes Store

Identify legitimate emails from the App Store or iTunes Store - Apple Support

Recognize and avoid phishing messages, phony support calls, and other scams

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

3. 

Request a refund

See -> Request a refund for apps or content that you bought from Apple

Request a refund for apps or content that you bought from Apple - Apple Support

• You can try to request a refund, refund only within 90 days.
• If you have requested a refund, you must wait until Apple has approved. Then you will receive a message from Apple.
• If your refund is approved, the funds will be applied to the same payment method that you used to buy the item.

See the Apple Support article(s) below. Link to contact Apple Support in the article.

Apple ID - If you see ‘itunes.com/bill‘ or an unfamiliar charge on your bank, credit card, or debit statement.    *