Poor service and *********** staff

I have experienced problems with nedbank many times... In this occasion I have purchased prepaid electricity online from nedbank for R200and the purchase went through and money was deducted from my account.. But I did not receive the voucher details for my electricity. This transaction took place on 11 June and I have contacted nedbank call centre 5 times and spoke to 5 different consultants but to no satisfaction.. In fact they told me to wait 5 days for them to resolve the issue.. But upto date there no joy.. I did not receive my electricity as yet.. I'm annoyed with the poor service and *********** staff at nedbank. Nedbank will not want to incur any loss but they good at causing loss to others. I will not rest until I get my electricity from nedbank. And I will not recommend anyone to open an account at nedbank. They so inefficient and hopeless.. They will contact us a million times for sales... But will not contact us when it comes to any fault on their part.