Faulty Playstation game

I brought a Playstation 3 game late Friday after noon from cash converters in springs mall the younge girl took my money and gave me a slip nothing further was said as she seemed in a bad mood i then tested the game Saturday afternoon which didnt want to work then when i went back on Sunday to exchange the game for another game... Another younge lady behind the counter that was too busy on her phone turned around to me and said sorry we cant help you its past 24hrs as i explained that i was not aware of the 24hr policy nobody told me and i assumed it was still 7days.. She ended up saying... Well only thing you can do is take it to the section where they buy games and sell it to them... We can't help you... I find tjis pathetic service as we were not advised of the 24hr policy... According to the consumer protection act wr have 7days to return faulty products....