Unfortunately you cannot choose a different product/size in exchange. You will have to do a return on the product. A refund will be made to the same account with which you paid the purchase as soon as possible after we receive your return.
If you want a different size or a different product, you simply a new order on our website.

If you have more questions regarding your return or if there is something else you are wondering about, contact our support at [email protected] and you will get the help you need there!