Apparently, you purchased a pre-owned timepiece from an internet dealer. This dealer offered a one year warranty. The watch failed (which sometimes happens), you're trying to exercise the warranty and the dealer alleges the failure was due to what appears to be a hard knock on the case and that would not be covered by any warranty. You paid for an adjustment and now the watch is returned in a condition that indicates a degree of sloppiness insofar as there is dirt under the crystal and the mainspring seems not to be holding a charge.
None of this is a Rolex issue. Rolex watches need servicing at times and although there are stories here on the forum of a Rolex keeping time for 10+ years without a problem, there are other stories of watches that just fail after a period of time and need work. And none of that counts for wear and tear that sometimes happens during the wearing of a watch.
From my point of view, your issues isn't with the company that made the watch, but rather the company that sold you the watch and then serviced it. That picture of a dent may or may not have caused the hairspring/balance failure...if it occurred on your 'watch' then I might side with the diagnosis, but you may go to your grave insisting that the watch should have, by reputation, been able to withstand the knock.
I understand your displeasure having purchased for a lot of money a watch with a storied reputation and having this outcome. And I'm not excusing the apparently failures of dirt under the crystal and now a power reserve issue. But a lack of full technical expertise to properly analyze the issue and lay blame is likely to end up as an 'I say...you say' stand off that might only be able to be resolved with a full service from an accredited repair facility that would make the watch conform to specifications with a warranty that is accountable. Absent that, perhaps a request to return the watch for a refund might be your best course of action. Good luck.