Very poor customer service and reponse

I have phoned homechoice because my order that was delivered is missing the pillowcases on one of the sets. I was told someone will call me back but thus far I have received no call at all- and was told that I would possibly need an affidavid to state that I received no pillowcases. How do you pack a duvet cover set with no pillowcases in the forst place and why must I then do all the work and phoning the whole time for a mistake that is theirs?! And while I was on the phone I could hear the personnel talking and laughing all the way on the other end. Very very I professional. By the time this is resolved then the set will probably be out of stock and I will be left with a duvet cover set with no matching pillowcases