Are you having problems with 18.1.1 Update? Lost Voicemails, Calendar is a mess AND MORE.

Help. HELP. Help. APPLE is non-responsive on problems with 18.1.1 Update. My calendar is not searchable. My voicemails are gone. My battery is heating up during charging. This has to be fixed. This is the worst of the worst updates. So many parts of the phone not working properly. APPLE - what are you doing? Leave the formatting alone. And to add to the problems - after the update - had over 30 calls come in from spammers and unknowns - How do we get APPLE to withdraw 18.1.1 and/or fix these problems?