Telkom customer care

We battle since October 2018 with my wife cellphone account at Telkom. Documents / Bank statements was sent 31 October 2018 for proofofpayments. But still not solve and my wife have to pay extra charges at a monthly basis. Persons I have spoken at customer care 081180 1.Graham Tanga 2. Slindile Mchunu 3.Malatji Kam 4.Masuli Mahole ( manager ) This is very poor service . We urgently required telkom solve this Asap.