You can't delete an Apple ID. You can remove your personal data from the ID. If you wish to pursue deleting the ID, contact Apple ID Support for assistance.
Apple ID – How to Delete
Apple ID – How to Delete (2)
Apple ID Support
Apple ID Support (2)
Apple Support by e-mail or chat Select your device, Battery, Power and Charging, then Power adapter not working to get a chat option. If the initial contact can’t help you, ask them to have someone who can help contact you. If you need to talk to them, ask them if they will do a Skype or FaceTime with you.
Apple Support using Twitter
Or fill out and submit this form.