How can you get all your contacts back when you've deleted them by mistake?

[nannyrobbo]

How can you get all your contacts back when you've deleted them by mistake

[Mark29359]

Did you not have them backed up anywhere.

[CarlH]

If you have them synced to your Google account, they should appear again. Were these contacts saved to the phone itself or on your SIM card? 

[MGAlumRock]

Open Google on computer and input contacts you should see them there,I think.