Nope, sorry. The master of codes cannot help you on this one.
But this reminds me of something I needed to bring up today. Have you guys seen Kafka? It's a store established in 1990 in Aberdeen. Their site is very similar to End Clothing's aesthetically and they stock many of the same items. The difference being, they have a constant code running, "KAFKA10", which removes 10% off nearly all items. So if you're looking at purchasing from End, pop over too Kafka and see if they have the product.