Damaged goods after a repair

I took my tv in for repairs in October 2017 where they advised it had to be shipped to JNB to replace a part. I have not used the tv since and when I turned it on now I noticed that the screen was damaged. I am so frustrated because I trusted them to handle the tv with care and now this! Upon phoning incredible connection in tyger valley the lady just transferred me to technical department knowing that they have already left for the day or so it seemed as there was no answer... ehat am I to do now?? They will probably charge me now as the warranty has expired...