Disgusted at the service delivery

Worst service provider. I am constantly following up on an electricity bill that I am being double charged for but instead of working together to resolve it, they resort to ignoring me and charging a penalty fee of R150. I'm disgusted in the way they conduct business. I once placed a review on Google Maps and got traction on my issue but now they went silent and deleted the review. I followed all the steps to escalate the matter but no joy.