Terrible service

Our townhouse complex has been on unipin pre-paid electricity for approximately two years. Initially the service was excellent, but for the past few months we have all been experiensing very poor service. The meters constantly keep giving error signals -no vouchers can be l3oaded when the meter does this and you are not able to see how many units are left, this error signal can last for several minutes or hours. So now you have no clue how many units remain. This has been reported but nothing has been done to fix the problem. On top of this when you try to access a voucher by sending your recharge pin, you can wait hours, even a day or more before they send you the number to load into the meter to recharge electricity. At one point my meter ran out and I could'nt recharge - was waiting for them. There are no help-numbers to dial only an e-mail address that I have'nt gotten a response from. The poor guy at the call centre (we were able to get to him only through searching the webb) is the only one who tries to help. We are all considering changing service provider, as we are so fed up with poor service. No notice or explinations has been for the serious decline in servic