FAI - after going through numerous calls with Apple support with no success I finally went and bought a new Apple certified charger and the problem is resolved.
My original charger that came with my phone seemed to charge the phone fine when plugged into an electrical outlet. After, the dinging noise started when plugging into the usb; I noticed my phone displaying a message (when plugged back into an electrical outlet) that the charger wasn't certified by Apple . Hence the idea to bite the bullet and buy a charger from Apple.
This is a side note regarding Apple support. Apple support individuals seem nice on the phone; the individuals I had working on the issue dropped the ball when it came to contacting me back as agreed with info. Emails and vm's didn't always work to jog the call back. I got plenty of apology's when I talked to someone new but was hoping for better support that that. A big ➖