I need to rest the icloud user name and password

Start here:

If you forgot your Apple ID - Apple Support

If you forgot your Apple ID password - Apple Support

If you cant recover access to it, find the box of your iPhone and the original receipt that proves that you are an owner of this iPhone, contact Support directly and ask them to unlock it for you.

Reset Apple ID / iCloud User Name ?

Please create a new one. As simple as that. You cannot change Apple ID / iCloud user name.

Click->If you forgot the passcode for your iPhone, iPad, or iPod touch, or your ...

Click->If you forgot the answers to your Apple ID security questions - Apple ...

Click->If you forgot your Apple ID password - Apple Support

Click->If you forgot your Apple ID - Apple Support