Bedding quality and size

I went to Chris Hani mall Vosloorus to buy quilt bedding for my queen size bed. For the bedding to fit the way i love i took a king size. Now i finally decide to use the bedding, it has this blue thread inside that looks like ink, so it's not pure white. And to top it off this is not king size because it doesn't even fit the queen bed. Mind you this is the second time i buy something of poor quality, in July i bought duvet cover when i was washing it then it tore. Am very angry with this particular purchase be my bed looks so horrible. I tried to wash it but the blue thread is all over. I want a proper quilt yeses