5 + 5 Special not true

I have gone to my local KFc for their 5 + 5 promo. Last week I ordered 5 + 5 and got 3 x pieces of chicken and 2 x Zingers. Only noticed once I got home and couldn't be bothered riding back to the store. Yesterday I ordered the same and told the young gent that my order was short last week and the only thing he could say was "Sorrrrie". So I ordered the same again, 5 + 5 and thinking after me moaning about the previous week it would be correct, yesterday I got 5 x chicken pieces and 0 x Zingers in an empty packet that looked like the order was complete! So for me this promo you guys are running is a rip-off as the 5 x Chicken pieces + 5 x Zingers for R69 isn't true and would be going back. You are actually annoying customers!