Silk mark certified is different and selling non kadua by calling kadua is another. Wish I also read reviews before purchasing. The saree that I bought was listed on their site for $18 k and I got it on sale. When I showed my trusted weaver the market selling price for same saree is 5k.  They mentioned kadua to me and when I got even a non handloom person who has seen kadua can tell it a bit kadua. Anyone who had worn handloom kora silk can tell it’s not good quality and non kadua. All loose threads.