ABSOLUTE SHOCKING SERVICE FROM TELKOM!!!!!!

My mother who is in her 60's has been paying for an extra phone, which belongs to someone else for a few months now, her address stated on the invoice is incorrect, does not belong to her. She has complained about this and nothing has been done. AGAIN this month she received a bill for an extra phone????? What the hell??? Also, she has put in a request for one of her phones to be cancelled - And to no surprise has this phone now for the 3rd month not been cancelled - She still gets billed for this. She phones to complain, and gets no help what so ever!!! She upgraded another contract with you 3 weeks ago AND received this phone BUT this phone does not work?? Cannot activate this phone at all. So after complaining about this and going into Telkom branch numerous times all her phones are now NOT WORKING!!! So she is paying for someone else's bill, paying for a phone that was meant to be cancelled and paying for an upgrade that DOES NOT WOR****! This is absolute SHOCKING service. She has about 4 contracts with Telkom and this is the kind of service she receives from you???? SHOCKING!!! What is going to be done about this??? And I hope she is getting reimbursed for the other bill that she is paying???? Someone better be getting back to her about this and get it resolved. SHOCKING SHOCKING SHOCKING!!!!!!!!!!!