Purchased ringtones not appearing on iPhone

Re: "Purchased ringtones not appearing on iPhone :

Bought tones on store but they don’t come up on the ringtone menu to apply"

Apple Support's online article:

Use tones and ringtones with your iPhone or iPad - Apple Support

says:

Go to Settings > Sounds & Haptics > Ringtones

Your purchased tones and ringtones appear at the top of the list of sounds.

If you get a new device or your previous purchases aren't showing up, tap Download All Purchased Tones.

You might not see this option if you already downloaded all the tones that you purchased or if you haven't

purchased any tones. You might not be able to redownload some previously purchased tones.

Another article: Use tones and ringtones with your iPhone or iPad - Apple Support

Eg: says:

Change your ringtone

1. Go to Settings > Sounds & Haptics.
2. Under Sounds and Haptic Patterns, tap the sound that you want to change
3. Tap a ringtone or alert tone to hear it and set it as the new sound.

_______________________________

Also: Change iPhone sounds and vibrations - Apple Support

Says:

Set sound and vibration options

1. Go to Settings  > Sounds & Haptics.
2. To set the volume for all sounds, drag the slider below Ringtone and Alerts.
3. Tap Haptics, then choose the haptics behavior for ringtones and alerts—Always Play, Play in Silent Mode, Don’t Play in Silent Mode, or Never Play.
4. Tap Ringtone or Text Tone.
5. At the top of the Ringtone or Text Tone screen, tap Haptics, then do any of the following:

• Choose a tone (scroll to see them all).
  • Ringtones play for incoming calls, clock alarms, and the clock timer;

text tones are used for text messages, new voicemail, and other alerts.

Hope this helps you find and use your purchased tone, wherever you wish to hear it :-)