short change

On 25 november at about 2am i went to buy 2 streetwise 2 at sidwell,pe kfc,i paid by R60 and didn't get my change,i asked the cashier by name of andiswa if it's not R29.90 for streetwise 2 and she insisted that its R30 eavh,in contrast to your advertised price of R29.90 for pe and bloemfontein.my attempts of trying to get till slip from her were unsuccessful

Ps. I posted this on your Facebook page but you decided to ignore it