Poor service paying for service not rendered with no answers

Poor service my daughter have been complaining about webafrica I wrote a review before we move houses we requested the change of address and she was advised to cancel the network that she was using and app**** for available networks coverage which it has never work cancelled app**** for other networks but keep on attempting to debit on account for service never rendered if called no one is willing to say why is she owing because no service was rendered since 1st of December we complained to their complaint department via email instead of checking what could be the matter they just send connection instructions for wrong router and wrong sim which they collect in December and no one is willing to explain why is the sim card never connected for 3 months but they attempt to deduct every month they deducted I am paying for service that I dont have please intervene this is long due Traumatized customers