How do I restore missing contacts on iPhone and iPad from iCloud?

My iPhone 13 mini has many missing contacts. These contacts are also missing on my iPad. I have tried restoring contacts from the iCloud as far back as May 28, 2025 and still these contacts are missing. This issue began four days ago, I have shut the phone down several times, each day I have also tried restoring contacts from iCloud.com and have gone back as far as the phone will allow. Only phone numbers are displaying when previous contacts call

[Re-Titled by Moderator]

Original Title: Missing Contacts