ROTTEN CHICKEN WAS SERVED TO MY CHILD AND I

On the 2nd of April 2016 my family and I were out shopping and about 2.45pm we went into Nandos Phoenix Plaza to have a late lunch, we ordered the meal which was for R199 and it came with 3 sides, we were then advised that on the special the store was having the meal comes with half chicken for free, we waited for 20 minute and our order arrived at our table however that was the meal we ordered, 5 minutes later we asked the waiter if she forgot about our half chicken which was a free meal, then she asked us if we wanted her to pack the free has a take away, we only just started eating and because we asked for the free meal to be made mild we told her to serve it to us, when she brought the chicken and laid it on the table we got a terrible smell like something that was rotten, thereafter we assumed it was just the smell of the grill or something to that effect. Because it was mild my 3 year 7 month child began to eat the chicken, I then noticed the smell was still there and getting worse, I then took the chicken and smelled it and it smelled like a dead rat or meat that was off days ago and then we noticed the chicken inside was blue, I HAVE RAN OUT OF TYPING SPACE, THERE IS MORE!