Bad service

What a pathetic service I received from Keletso and the staff at Rage Fourways mall. I bought a shoe that was on sale for R101 and decided to biy for 2 pairs. When I paid at the till it wass R139.99 and they told me that the manager is busy banking and left her phone and the is no way I can contact him. Thinking I am 7 months pregnant and the made me sit there without a solution but an excuse that its been 3 months since the staff has been working there. I had to wait more than 30min before tye manager could come and resolve the matter after I told them I am going to send a formal complaint. Thinking how many black people are the doing that to and dont say anything amd just pay. Its their duty to male sure that they put the correct price on the items.