I can see the other side though - why have a network of distributors and sellers if they don’t adhere to local sales law and practice and then pass that up the chain to the manufacturer. In terms of Amazon sales, WiiM are the seller, distributor and manufacture so rightly deal with issues directly. I’ve however asked WiiM to contact the distributor to see if that helps but from a consumer point of view, all your dealings should be with the seller imho - your purchase contract is with them. I wouldn’t directly contact Samsung about my faulty tv even if it had a known fault, I’d go back to the shop I bought it from.