KfC Langebaan robbing customers

On two occasions now i bought food at Langebaan KFC. I usually due to the size of my family buy 3x streetwize 3pieces. Thats 9 pieces of chicken. When i get hom in Vredenburg which is about 20 to 30kms away i find out they only gave me 3x streetwize 3 pieces (6 pieces) of chicken. The first occasion i didnt really bother to report it but this is now the second time and its unacceptable. The quality of the food is very good but the service makes the whole experience leave a bad taste in your mouth. I wont advise people to buy there anymorw