I bought a 9 Kgs Samsung machine for 800 Euros, it came to be 9 on few cycles while the rest of the cycles are just 4-5 Kgs. I was never told that by the seller who embraced the product.
I talked to Samsung who mentioned I have to monitor the number of towels, piece of clothes I'm putting... etc while there's nothing mentioning that in the manual & when I asked them to send me the info via email they refused, I called power city & they mentioned the same.
There's Samsung Smartcheck app that nobody told me about, I downloaded & used it for checking the washing machine & it says there is no issue with the washing machine, while there's very knocking that woke me up from sleeping.