What Do I Do If All My Contacts Got Deleted?

I have an Iphone 4s, my company is Verizon. I updated it about three months ago and it has been acting slow and weird since then.Recently when I try to go on Instagram it has turned of and then on twice. Now 3 days ago All my contacts got deleted, I can't call Verizon because of the holidays.

You must have backed it up somewhere like itunes or icloud. Just go to it and restore from back up

Although someone else might give you a better reply if your inbox & outbox (sent) messages are still there then you will be able to put them one by one into contacts again. Similarly you can sometimes use a site's search to list all of your own posts which shows you who they were to. You can do it in google as well. It's best to make a copy of contacts.

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