Q: How do you change the settings for find my friends to use my contacts. When I signed in I selected do not allow iPhone to use my contacts and now all the names are in e mail format.

When I opened the app I selected do not allow, to use my contacts, but now realise I should have allowed it. I have uninstalled and reloaded it, but it will not ask me to use my contacts again. Any ideas as now I see e mail names and not just the persons name.