Poor service

A week ago i bought electricity from pick n pay the glen. The cashier enyered the pin incorrectly unknown to me and when i got home to enter the number it would not take. After phoning the store manager who firstly called me a **** he said that there is nothing that they can do and i must sort it out with eskom. I then phoned head office and everytome i call i have to speak to a different person. I have tried calling the store back for the last 2 days now and rhere is no answer. I find this apauling service and i definitly am going to be taking this further and to the press