Drive through made me wait almost 30 minutes

Went to the kfc at 10pm on 19/04/2016. waitede at the first window for service. There was noperson on duty. After screaming and shouting for attention at the abandoneed window for almost 10 minutes, i finally went to the next window (where orders are normally collected). At this window, there was a person who told me there is only 2 people on duty at night, and therefore, the first window was not in service. The service was pathetic, i left without my order after waiting in the drive through which does not offer a shoulder lane for those who want to leave. I therefore had to wait for the person in front to complete their order, before being able to leave the premises. I reported the matter to the manager Chris at the same time, who was very indifferent about the incident. I have been inconvenienced incredibly. I chose to go through the drive - thru to save time, and spent almost 45 minutes in total, and then left with empty hands. I believe the KFC should be fined, reprimanded, and disciplined. I feel that my valuable time needs to be compensated. I will be willing to settle for a KFC voucher to the value of R1000, and an apology. I shall then go back to assess the change (if any)