@glory
You made a mistake in this process, you trusted someone unworthy of your trust. Your best course of action is to dispute the charge and the transaction with EBAY, Paypal and your credit card provider.
Chris has visions of grandeur and an inflated sense of self. He won’t be backing down unless its painful. Even then, he may not because he is doubling down on his vision...whatever it may be. Explore legal remedies, take snapshots of his webpage and any communications he may have sent or been a party to. The same goes for texts and forum posts. Its highly likely he may have committed some variation of fraud. He has certainly breached the contract, your job is to ensure you have done what was required of you in the transaction. You may have other remedies as well through EBAY in addition through your local consumer protection agency. Depending on how vindictive you want to get, did he charge you sales tax and does your state require it? Most do so it might be interesting to get his name on their radar.
Chris, I would be curious how you contacted Gov Abbot and for what purpose a "$10mm service contract" would be offered. Was there an RFP to which you responded or does your product cure the power grid of shortcomings? I can see how Musk might have been distracted but I am shocked that Bezos didn’t do a deal with you!
To anyone considering doing business with Chris Arnold, Nano-Flo or Enterprise Coatings, please read this thread starting about page 12. If you proceed, you are doing so at your own risk. Stick a fork in this one... Nano-Flo is an ethically challenged money trap.