Disgusting will never order again from them
BEWARE applying discount codes at the checkout, which are accepted, and payment taken may well result in an email the following day cancelling your order as a "computer glitch" allowed a discount code, emailed to me that very day to be applied, which obviously shouldn't have been. Not my mistake - theirs.
A shop on the high street would honour any price errors they made, and sell you the item at the discounted rate as advertised/seen.
Seems online is another matter for this supplier.
Luckily a happy ending - ordered the same item at Kates Clothing, used a valid discount code which was accepted - havent received an email yet to say they've made a mistake - happy days!