I bought a charger from his website, which was posted as 'New', but it wasn't working upon arrival…read more I asked if I could get my money back or a replacement. He felt attacked and started directly with the insults.
After that, I decided to place my first bad review, and he started harassing me online and contacting old employees of mine he found via LinkedIn. I even went to the police since he wouldn't stop; please do the same if you experience the same behaviour, he is already known by the police and with enough cases they can stop him.