Myntra.com — I am complaining about Myntra quality check failed

Website: www.myntra.com

Order No. # 120962103069618188101

So I have ordered two roadster jeans for my brothers one with 32 number waist and one with 30 number waist . When it came, 30 number jeans was fit but 32 number jeans was too loose so I decided to return it. after the pickup has done they told me that the quality check was failed, now tell me how is this possible because we haven't used that jeans and I have returned it without any damage with all the tags. This is not fair Myntra I want my money back because I had returned the jeans with its original condition.