If your order was sold or dispatched by Amazon itself, Amazon will refund the cost of sending that item back to its warehouse. In many cases, you’ll receive a free pre-paid returns label upon requesting your return. However, some items may incur a return charge, with prices starting at £3.99 in the UK and £8.09 internationally. The cost will be higher on orders than contain large or multiple items. Again, you'll want to check the specific item to find out.