Coat Needs New Life!

I’ve been wearing my Tres 3-in-1 Parka for about 8 years now, and it’s lost a ton of its feathers. It has thinned out considerably and doesn’t really keep me warm anymore like it used to. I love the coat and would rather have it repaired than buy a new one, but I don’t know if that’s possible. Anyone know what can be done? Will Patagonia restuff the coat or replenish the down (either for free or for a fee…I just don’t want to be wasteful :) )

Added note: I’m handy, but restuffing a coat is a bit outside my metier…DIY solutions won’t really cut it here.