Amazon Marketplace Mis-Selling

I've noticed a huge amount of deals on laptops, computers, tablets etc where the specification is falsely described in fact you see many such deals on Latestdeals, for example a so called 6GB memory tablet is actually 2GB when you look at the description properly or laptops are described as quad core but when you look at the CPU number it is actually dual core and much slower. This seems extremely common for marketplace sellers to mis-describe their products.

The issue is if a product is mis-sold then you have up to 6 years I believe to claim if it was fair that you didn't realise it was mis-sold for sometime. Ultimately there was never a contract of sale because they never supplied the product as described.

As consumers should we be making copies of listing pages perhaps pdf printing the listing page and the order page so if we later discover the product doesn't have the feature or performance we expected we can claim for it even if 3 years from now. Do you think that would be fair to Amazon or unfair? They are basically reaping the marketplace seller fees for products that are mis-sold.

If you have been using a device with only 2/3rds of the speed of the product it was sold as should you be compensated for your wasted time?

As far as I can tell products sold by Amazon themselves do not have these issues they are as described and Amazon give no warning to consumers that marketplace sellers often mislead customers about the specification of products.

Another product I've just thought of is Action cameras which are often well below the specification stated. Many 4K action cameras only record at 1440p, 1080p or even 720p and then upscale the image in the video. This is not only terrible quality for 4K of course but it wastes battery life upscaling the image.

I had a recent issue with a tablet from a marketplace seller, I posted a review describing the false specification and almost as soon as Amazon approved it, it was removed. So Amazon are preventing consumers being warned about fake products from their marketplace too so in which case surely they should take full financial responsibility for people returning goods even if 5 years after purchase from the marketplace.