Why am I being **********?

I bought wireless earphones at the Cash Crusaders at Vosloorus Chris Hani mall, they didn't explain their no refund policy when I bought the earphones. The earphones worked literally for one day and when I tried to return the earphones then only thereafter the no return policy was explained and rudely so might I add, the guy manager even went as far as implying I broke the earphones. I asked for my money back as I was not pleased with the service and he said he won't refund me but will send the earphones to be checked whether or not I broke them or not. No such policy had been explained to me upon purchase so I couldn't even make an informed decision about my purchase, now I don't have earphones and my money is gone, I'm very unhappy with the service interaction I had and at this point I just want my money back they can keep the earphones