Erm....
For me, it is quite easy.
Actually, customer ( buyer ) bought the item from seller, while seller got the item from distributor right?

If buyer received the item and something is wrong with the product, normally within 1 week or 1 year, we just need to go back to the one who sold the item, ask for RMA service or exchange service, right?
Because normally, seller / retailer is the one who going to deal with distributor, not end user themselves, and most of distributors do not deal with end user directly even with purchase receipt.

So, I'm not sure whether I'm right or wrong but usually this is how we work in Penang la....
Buyers deal with sellers, while sellers deal with distributors.
Unless there is some special case, where distributors demand to deal directly with the buyer ( macam the retailer already end of story, the retailer suddenly no deal with that distributor, bla bla bla )

Korek me if i'm wrong.