Any item can be returned within 28 days of receiving your original order, including sale items. Returns are free and fully trackable. Simply complete the Returns Form enclosed with your order and use the label provided to post back to ASOS via USPS.
No customs/import duties for orders under $200US, but orders over $200 may incur additional charges. Canadian purchasing from the US site may incur customs/import duties on all purchases - the value of these are not outlined on the website and may vary
Will price match within 30 days from any retailer online if you find it cheaper elsewhere, or if it goes on sale cheaper elsewhere. Very easy, direct to bank card or credit card refund.