Can I return an item bought in store without a receipt or labels on the product?
If you are returning an item without a receipt, you'll be given a goodwill exchange or refund of the most recent price, which may be a sales price. Goods must be returned in a resaleable condition. If the item has its sewn in labels cut or removed, they're not in a resaleable condition and we reserve the right to refuse a refund. This does not affect your legal rights.
For further information see terms and conditions on marksandspencer.com. © 2013 Marks and Spencer plc