Items replaced with lesser ones, then order cancelled when I complain.

<p> </p> <p>My order ********** was cancelled without my approval, an item was wrong on their system and was not the item which i had originally ordered and it was substituted with something else without my approval (Ordered these cool connector type toys for my son and they changed it for inferior building blocks with no notification.</p> <p>I then emailed them to make them aware of the problem and I requested that they replace the incorrect item with the correct one before it leaves the warehouse, next day I see that my whole order was cancelled (including a book which I had ordered) without my consent.</p> <p> </p> <p><br />I have also still not received a refund for this unapproved cancellation and their system shows that it was delivered, which is not correct.</p> <p><br /> </p> <p><br />I have emailled their customer services and keep getting generic responces and they keep failling to address my issues, instead they just tell me that the order has been cancelled because of "delivery failure" which is utter ****!</p> <p> </p> <p><br />Customer service is utterly dismal, their staff blatantly ignore my questions and only selectively and inadequately answer select issues.</p>