I find decathlon offer great value for money particularly on their choice of bikes. However, I will never again order with them online again and their customer service (aftercare) was awful. I was sent the wrong sizes and when I asked to exchange was told the new item would be sent when mine was received. After sending the item back and obtaining proof of postage, the replacement item did not arrive. On questioning this, the customer service advisor was rude to me and only after scanning in my receipt and sending it to them was a new item posted. I received the correct item 3 weeks late and with no compensation.