No electricity from UniPin

I bought electricity to the value of R2000.00 from UniPin. I have been buying from them for the last 4 months and I know the steps that I have to follow to get my token via SMS. I have been trying to get the token for the last 2 hours. I have a guesthouse and now my guests are sitting in the dark. I sent the voucher serial number to the SMS number and to their email adress which is stipulated on the voucher but NO REPLY!!! No backup from UniPin and extremely poor service. I will not buy from UniPin again. R2000.00 down the drain.