The new savings book starts 2nd April so an offer from last month will not work
There seems to be something wrong with the website at the moment. Getting odd error messages when trying to add to basket.
Thanks OP! Got £120 worth of Nandos vouchers for £90....yum
Do you need to not be a Costco member to use this discount code? I'm getting a message saying: "Please note: the "SAVE15" voucher cannot be used in conjunction with the purchase of a new membership, membership renewal or online subscription. Please place your membership order separately." I'm not trying to buy/renew membership, just a couple of mattresses. TIA. Edited: Purchased now with the £15 discount so thanks very much OP, as I was buying these mattresses today anyway. Had to pull up a new page and readd to the basket, I think because I'd had to call Costco to unfreeze my account (couldn't remember password and guessing it got me nowhere fast) this may have made the system think I was buying a new membership.
Just used it for a Shark vacuum. Thanks OP!