No chicken and old chicken

We went on Friday to KFC Sandbaai we ordered 2Tower burgers at the drive through when we left there I started eating my chips and when I opened my burger box I saw that there was no Chicken on my burger, I then have a look at my husband's burger and there was no Chicken on my husband's burger. I was so angry I told my husband to return to KFC Sandbaai we stay in gansbaai and was by that time almost through herm**** he turned around to go back to KFC. When I asked the person who helped us she said sorry and that she would make us new burgers. I told my husband when I started eating my burger that it does not taste right.On Friday night me and my husband started feeling sick and we through up the whole night and my stomach cramps so bad i just cant take it anymore. I am still sick of the KFC that we eat on Friday. What are you going to do about that. We ate only the kfc burgers on friday so it could only be that that makes us sick.