Exchanges
What can be exchanged?
A customer may request any available replacement product, not only another size of the original item. The replacement can be reserved once the exchange is approved.
The customer must tell TTK within 14 days of receiving the order. Change-of-mind items must be unworn or unused and returned with tags and packaging in as-new condition. Socks, books and magazines are excluded from change-of-mind exchanges; statutory rights still apply to faulty or incorrectly supplied goods.
Postage and price differences
For one approved exchange per order, worldwide, the customer pays to return the original item and TTK pays standard postage for the replacement. Further exchanges may incur delivery charges.
If the replacement costs more, collect the difference before dispatch. If it costs less, refund the difference to the original payment method or issue store credit.
Start here: https://www.thosethatknow.co.uk/returns/start-a-return/