If an order initially qualified for free delivery on purchases over £100, the shipping cost will be deducted from the refund if an item is returned, and the remaining order total falls below £100. In such cases, a shipping fee of £5.99 will be applied.

For instance, let's say a customer purchases items totaling £120, qualifying for free shipping. If they return an item worth £30, bringing the total order amount to £90, the £5.99 shipping fee will be charged on the refund. So, if the refunded amount would have been £30, it will instead be £24.01 (£30 - £5.99).