@zalive, sadly I found your words to be all too true. I still remember all the hassle of trying to source genuine high purity OFC copper speaker cables on eBay.By the way, beware of Sonarquest. I found out they don't stick to their own specification - they confirmed to me they now use berylium bronze instead of pure copper for EU Schuko plugs, yet they didn't update the spec on their web page. They claim they use cryo treatment, however after finding out the false spec I'm not sure I trust them. Furthermore, they call this a 'material upgrade', which is a ridiculous claim - any bronze is far inferior to pure copper.
After trying to trawl through the maze of varying prices and some non too convincing pictures and fine print descriptions I gave up went to Amazon UK and read through the reviews there which eventually led me to some transparent sleeved BasicLine15 metre 2x2 5mm set from Germany (DCSk) claiming to be 99.99% saueurstoffreie.
I have no real way of knowing whether they are the genuine article but they are reassuringly heavy and do have that reddish copper colour.
So when you find out the brand owner downgrades its products and keeps false specs, what can you expect from fake or no-brand market? That they keep their word?
On the good side, I checked Viborg plugs too and underneath the plating is red copper (I cannot check the purity of course). There are occasional discounts on those plugs and when it's so it's a good value product. Also, all my recommendations to genuine Star Line RCA from ebay, this is high quality stuff.