Refund

Last week Tuesday I bought a cold chain when I got to my car I only relise that I read it wrong on calculate I read R1499 but it was R24000 I went back and ask if I can please refund the chain its to much. The manager said its fine but I must have a credit card. The whole week last week I was waiting for refund. So on Sunday I went back and he said somoene will phone me on Monday. Monday I'm waiting whole morning I'm waiting for them to call at 10.:35 Ii phone them I spoke again and then he said Sharon must the owner must sign it off. And the problem credit card show as savings could they not call back and just inform you.