Sammy Dress Very low quality product ridiculous sizes Online unsure where located Unsure

 I used Sammy dress as they offered a discount and their products looked amazing. I ordered 2 products for just under £30. First of all they sell the product at discount but charge crazy amounts for shipping. I should have known by that point that they are just after money. On arrival of the product the large I ordered was a ridiculously small size, the cut and the colors were not as represented in the photos. I emailed them to report this and after being evasive for about 3 weeks they responded that my order was correct and could i please measure the garments in like 10 ways and send it back to them. I then new that even if I went i to town and purchased measuring tape and measured the produt theh will just reply that it is the correct size. I am utterly dissapointed and I feel cheated from my hard earned money. It has become clear to me that they advertise something that they dont sell and once ordered there is nothing you can do about it