BAD SERVICE AT PREPAID METERS

On the 1st of March I bought electricity using the standard bank app, for R300, it went through my money was deducted and the token was sent when I get home the token does not work. I contact standard bank that referred me to Autoserve department which referred me to prepaid meters. I used up all my airtime contacting Autoserve, they do conference call for me with prepaid meters but still noting happens the guys at prepaid meters tried to trouble shoot but it still didn't work, they said they will get me a pin to reset my meter but no one ever gets back to me, today its Thursday 10-03-2016 and still no one has called me to help me, since they require me to be in front of my meter to help me. I am tired of not been taken serious about this matter and whats worse I call them every day they promise to call me when I am at home and no one calls!!! my unites are almost finished and I dont have anymore money to buy more electricity, so does this mean now my son and I must be left in the dark, waiting for prepaid meters to give me a reset pin in order to help me. This is soo unexceptable!!!! please refund my money so I can buy myself more electricity.