I have been dealing with RCBS for a long, long time.
Their customer service and warranty policy is absolutely beyond reproach.
Never had a hassel of any type, and don't believe I have ever paid a cent for anything.
Here's a typical example. I purchased a used 30-06 FL die set at a garage sale for $5.00.
When I sized cases with the resizing die, it scored the cases a bit in one spot, so I phoned RCBS to see if they would polish it up for me [at my cost, of course]
They told me to send them the die, along with a case I had sized with it, plus 3 fired, unsized cases from my rifle.
I received a brand new die that matched my rifle's chamber, and the charge was exactly zero.
Doesn't get any better than that, IMHO.
Regards, Dave.