My product is bangles and I am unable to add size and colour variation in a single listing. Talked seller support twice but they say in your category (Jewellery>Bangles and Bracelet) you can not add these two (size and colour) variations but on Amazon other seller's are creating listing with Size and Colour. I also tried bulk listing but there also don't have any option for that. Please help me, it's a serious problem for my online business.