Poor customer service, at the order stage you have an option to specify if you're happy with substitute in case an item isn't available (which is understandable), it also appears that your order will be amended in case you will receive a substitute (that's very clever and transparent, I liked that). I did receive a substitute (same item but different brand) which could seems to be more a genuine human mistake than anything else (as per their process) when I contacted the team they just told me that this is a substitute and that's it. When I ask for more information on how I should process to avoid this to happen again they ignored my question and ended the email with "please let me know if you have any question". So I asked to answer my question again. The answer was that I should send email Day-1 the delivery to check if they have all my items in stock?? Great product but very poor customer service, could have been handled with a genuine apology for genuine mistake and I would have been very happy.