Forgot Apple ID and password

See

Activation Lock for iPhone, iPad, and iPod touch https://support.apple.com/en-us/HT201365

Turn off Activation Lock https://support.apple.com/en-us/HT201441

If you can't activate your device https://support.apple.com/en-us/HT201407

Go to How would you like to get help?https://getsupport.apple.com/?caller=kbase&PRKEYS=PF9&category_id=SC0068&symptom_id=20167

Note that Apple usually won’t unlock a device without seeing its serial number on your purchase receipt. You may be able to take the receipt and the phone the to the genius bar (make an appointment https://www.apple.com/retail/geniusbar/) of a brick and mortar Apple Store for help in removing the lock.

See if you can recover the ID/password.

Apple ID - How to find your Apple https://support.apple.com/en-us/HT201354 An iCloud e-mail address is an Apple ID.

Apple ID - Find https://iforgot.apple.com/appleid#!&section=appleid

Enter the Apple (iCloud) ID and click Forgot Password.

Apple ID - Manage https://appleid.apple.com/#!&page=signin

Apple ID – Forgot Password https://support.apple.com/en-us/HT201487