Incompetence of our service providers UNIPIN

I haven't been able to buy electricity online for over 2 days. I have gone to buy from the shops and I'm now struggling to redeem my vouchers. I dont have electricity and I no longer have means to get it. I've called their call centre and was on hold with no answer all the times. I've contacted them by email, WhatsApp and via SMS. There's been no response from all those platforms. This is ridiculous and I will not stand for this nonsense of being inconvenienced by other people's incompetence. This completely unacceptable. My husband just had a chance to talk to them and they said they disconnected us because we bought electricity for +/- R8000 in advance and they suspected us of bridging the meter, so they must have deactivated our meter without letting us know. In which world does one get punished for paying for things in bulk???? The service in most south africans institutions is appalling. I'm a disgusted by this treatment and someone needs to be held accountable. IMAGINE!!!