I don't have Siri enabled but get Siri suggestions in iOS 12 I've disabled Siri years ago, before updating to iOS 11 and now iOS 12 on my iPhone 6S. So I don't have Siri &amp; Search in my Settings, but I do get Siri suggestions on my lock screen after a missed call (after updating to iOS 12).

How can I get rid of the Siri suggestions on my lock screen and why do they appear if Siri is disabled?
You can disable theses suggestions by going into Settings > Siri &amp; Search and switching "On lockscreen" off.
As to why this isn't normally disabled if you disable Siri, I don't know.