bad service

We purchased take aways from KFC that was really bad and we really could not eat it. I lodged a complaint with their head office and the branch contacted me however their reply was that I should have brought it back and it will never happen again. I contacted their head office again via email an informed them that I was not satisfied with the reply of the branch. Approximately a month later the head office rep**** via email just to inform me that they were unable to reach me at my number and closed the complaint. I rep**** to inform them that I had received no calls, messages or any missed calls and that it was not possible as I had received other calls on the same number. I have never heard anything from them again. I never expected such poor customer service from KFC and it it rather dissapointing!