Milimani city Mall Dar es salaam - Worst burger ever

I have just ordered a burger at milimani KFC. I would like to inform management it was the absolute worst burger I have had in any country. I took one bite and gave it back to the order desk and walked out. It had a burned chIcken strip about the quarter the size of the bun no patty. Dry and tasteless. This was my order number 0345/000101958 on the 8 01 2017. If they didn't have they should have told me I would have gone elsewhere. Insulting and dissapointing.