I went there for the special 5 pieces of chicken and 5 zinger wings but they gave me 4 zinger wings and my change short with R10

I went there for the special 5 pieces of chicken and 5 zinger wings but they gave me 4 zinger wings and my change short with R10. I called in they asked me to come and collect them myself so when I get there a lady phumzile was busy interrogating me with an attitude if I'm telling the truth or just making up stories. So I took my time just to collect 2 zinger wings and my change of R10 really...