It took a week to get to the UK. About a third of the time it takes to get your returned items back to them.

Where is your shipping location? I haven't had any issue with delivery for my hundreds of orders and returns. Yoox aims to fulfill order delivery within the delivery time indicated on the shipping method. Yoox manages inventory and shipping between internal warehouses very efficiently and have control over delivery process until packages are handed over to the courier.

You shouldn't feel intimidated because a few negative incidents. Errors to businesses that operate at such scale are inevitable and also because of their scale, they can absorb this cost without transferring it onto customers.