If you are not entirely satisfied with your purchase, we’re here to help.


We will happily issue a replacement or refund assuming they are returned within 14 days of receipt.  To be eligible for a return, your item must be unused and in the same condition and original packaging that you received it (with all tags attached).

Your item needs to have the receipt or proof of purchase.
You can exchange your item in 3 easy steps:

1. Send an e-mail to [email protected] stating your order ID & the reason of return.
2. Prepare the package. You can use the original shipping box or any box that is secure.
3. Send your package at your own costs to the following address:

Castart x Our Sister
Lombardenvest 62
2000 Antwerpen

Castart will not assume responsibility for reimbursement or compensation for any return packages lost in transit.
Please note that ‘Sale’ items cannot be returned.


Please follow the same steps as online returns.
For exchanges in size we will not charge the transportation costs for re-sending the order.


Once we receive your item, we will inspect it and notify you that we have received your returned item.

If your return is approved, we will initiate a refund to your credit card (or original method of payment) within 15 days from the day we’ve received your return package and form. If for any reason after 30 days you still have not received the refund, please contact your bank. After this, don’t hesitate to contact us for further assistance at [email protected]

If you have any questions on all the above subjects, contact us on [email protected] and we will get back to you as soon as possible.