unhappy customer

Hello Peter I bought a tekkie at street fever in caledon, uitenhage size 5 and they gave me size 7 unfortunately for me only noticed the size later when i got home and the following day i took it to the shop, they did not take it. 1. Their flyer /caterloge said you get 10% discount but when i reached the till to pay they said the top management said the discount is not applicable to the takkie I bought.