account privacy/customer service poor/security of clients

What is the purpose that we have an account with this company or that we have passwords, so I have and account with them but someone on the property wanted to have their own Fibre line and entered the same address and intstead of webafrica contacting me as the account holder seeing that account holds my banking details my ID number they just just allowed someone to have full access my account, so i know customer service if that was to happen the company should call ask the client if they aware of this activities but NO they didnt infact they just went ahead NOW im sitting with oout internet for 5 days already everyday i speak to 3 or 4 agents and none of them can get my internet online they received there money and I have nothing... i cant get hold of them because ironically the only contact number they have is for sales but not customer service.....you have to chat to a robot...anyway the lady said she will tranfer my call to support when it was tranfered they dropped the call. this i the worst customer service ever