I phone is locked.then I can't open this.
iPhone 5, iOS 9
If this is a used device, you will need to contact the previous owner to have them log out of iCloud or go to https://www.icloud.com/find/ My Phone and erase the device, then remove it from their account. If you can’t do that, the device is useless.
Turn off Activation Lock - Apple Support. https://support.apple.com/en-us/HT201441
If you are the original owner, take the device, the original purchase receipt with the serial number, and a photo ID to the nearest Apple Store.
Genius Bar Reservation and Apple Support Options - Apple. https://www.apple.com/retail/geniusbar/
or contact Apple ID Support. They will need to see the original purchase receipt/paperwork also.
Apple ID - Official Apple Support. https://support.apple.com/apple-id
Contact Apple for help with Apple ID account security - Apple Support. https://support.apple.com/en-us/HT204169
Get Support https://getsupport.apple.com/. Work through the screens to get a chat option.
https://twitter.com/AppleSupport
Or fill out and submit iTunes Store - Contact Us - Official Apple Support https://support.apple.com/en-euro/itunes-contact The form is for iTunes, but it will get passed to the ID Support section.