Bad customer service, deceiving and lying about delivery

When delivery took longer than usual, I tried to change the delivery address as we were going on holiday. I was told the package was already sent. Not true, no tracking number was sent and online the order status wasn't changed. I contacted them and suddenly the story changed. Package wasn't sent but they have technical problems and would come back to me. No further contact was made and 15 days (working) later still no contact and the order hasn't been shipped. All would have just gone perfect if the address could have been changed and good customer service principles followed. Beware of online shopping on this site