When you return your order, just pop your returns note in the parcel with the following details marked on it:
Your order number
Which items you’d like exchanged or refunded
The new size or colour you’d like of the items to be exchanged
我睇FAQ話係張return note 寫想換咩碼就得
試左寫s碼, 唔換咪退錢
遊生玩水2018-11-21 11:11:02
http://asos.custhelp.com/app/answers/detail/a_id/88#International
We're not able to offer an exchange on returned items and all returned items will be refunded once they've been received by our warehouse. If you need a different size or colour of an item, then you'll need to place a new order.