Need advice on a dent repair

[Richard Wise]

Good evening everyone,

I would appreciate any advice on this:

I purchased a gun that arrived this week that was advertised as pristine barrels

https://www.gunbroker.com/item/1151148634

It arrived with the dent in the attached photos. Could anyone please offer advice on how I can potentially fix this? Or maybe purchase replacement barrels? It’s on the chamber end and can be seen in the bore. If these pictures don’t work I can try to take more.

The seller referred me to the $100 insurance he purchased from usps, which isn’t an actual solution. I tried Kevin’s In Thomasville GA and called BRiley about potentially adding tubes with no luck so far.