If your read lots of threads around here and at other gun forums you'll find that CS was a help and turn around times were decent.
It is odd that the guns were not looked at closer at the LGS. I see a lot of guns dry fired before the purchase. A lot of people do that prior to buying the gun. That or do that using snap caps. Those are cheap insurance.
There are plenty of gun companies, even high end ones, that do not have e-mail so that's a non-starter there.
Taurus guns have to be field stripped and cleaned prior to doing just about anything else. Same for Rossi handguns as the preservative they use for shipping will cause problems like this if not cleaned out.
There are few actual details about the how,why, and where on this. There is no way to know the how as there are a goodly number of ways this could happen. The causes need to be gone through and eliminated otherwise this is all an academic exercise.
The "friend" is not relevant as he is unavailable and is anecdotal with lack of relevant details means there is no way we can be of help.
Normally that's the way things work. Either the gun is taken back to the store, a local certified gunsmith looks and correct the problem, the gun owner takes care of the problem because they have the knowldge and ability to make the fix, or the gun is sent in to be fixed and the gun owner works with the company to get things under control.
That's not seen there.
Get the name of the person you talk to. Even a detailed letter by snail mail would be of help to them.
There are quite a few good CS people. Yes, there are some that are of no help. Those get weeded out over time
We have little to go on and that does not ehlp the situation.
If those actual details are given then working things through is possible. If not then it's just another questionable rant.