If the tone is still in the store and the phone is on iOS 11 : Use tones and ringtones on your iPhone, iPad, or iPod touch - Apple Support
With iOS 11, you can redownload purchased tones that you bought using your Apple ID.
Go to Settings > Sounds & Haptics, then tap on any sound. At the top of the page, tap Download All Purchased Tones to check for any previously purchased tones not currently downloaded to your device. You might not see this option if you've already redownloaded your purchased tones or if you haven't purchased any tones.
You might not be able to redownload some previously purchased tones.
It doesn't even show up in the ITunes store, but the producer does. I don't think it's right that I'd spend the amount I did just for it to get taken off the store and have me lose it. Why would I have purchased it in the first place and do I get a refund?
It won’t show in the iTunes Store app, it will only potentially show as per what I posted. And no, there aren’t refunds if an item is removed from the store.
Unable to Download Ringtone. Have receipt.
