Under the EU and UK’s distance selling laws, buyers have the right to return certain products for any reason by contacting the seller within 14 days. This 14-day period will start the moment a customer receives a product, rather than at the time he or she purchases it. Within that time frame, buyers can change their minds and return products without providing a reason. You have 14 days to contact me about returning an item. The 14 days starts when you receive the product.

This rule does not apply to custom-made products, digital items, perishable goods, or goods that can’t be reused for health or hygiene reasons and are unsealed after delivery.

Model withdrawal form
If you wish to return an item, you can use this model withdrawal form (in other words, a cancellation form) that you can—but you're not obliged to—use if you change their mind and wish to return a product. http://extfiles.etsy.com/cancellation-forms/EUCancellationFormEN.pdf

Refund rules
Under the current regulation, if buyers properly exercise their right of return, sellers must issue a refund within 14 days of receiving the returned item or evidence that the item has been shipped back. Please note that in the EU and UK, the refund a seller provides in the event of a return is required to include the shipping cost for the initial delivery to the buyer.