Hello there, Music Enthusiest.
The following Knowledge Base article below should help you with this:
To purchase items from Wish List:
- From the iTunes Store homepage, click My Wish List located under Quick Links.
- Locate the item you want to buy in Wish List. Tip: To make sure a song or video is the one you want to purchase, you can view or listen to a 30-second preview of that item.
- Click Buy.
To purchase all of the items in your Wish List, click Buy All*.
Items that are no longer available on the iTunes Store will be removed from your Wish List. In addition, previously purchased Apps cannot be redownloaded from your Wish List and will be removed.
You can add as many items as you want to Wish List. Your account is not charged until you purchase an item. When you click the Buy button, the item is charged to your account and downloaded to your iTunes library.
Important: All sales are final. You cannot cancel a purchase after you click Buy.
Thanks for reaching out to Apple Support Communities.