It looks like a flaw in the chrome. I don’t see how they could say it’s your fault.

I have a sharp piece on my newest xpole in the hole for the joint and I get scratched up from it! I also didn’t notice right away. I try to avoid it for now but I’ll probably put some tape over it. My pole is brass.

Contacting xpole is your best option. Hopefully they’ll replace that piece.