[mothered]

Their terms are contradictory.

They first state:

Due to the nature of our live market, we are unable to offer refunds, exchanges or swaps of any kind - including if you ordered the wrong size.

However, further down the page:

StockX verification tags that are attached to items must not be removed, or the items will not be eligible for return or exchange under any circumstance (including damage in transit).

So as per the above quote, they do In fact exchange/refund- they're simply stating It's eligibility.

This Is where the loophole Is. Contacting them In 3 business days and establishing the grounds on which a refund/replacement Is given.

If there is a problem with an item you received, you must contact us in writing within 3 business days of receiving.