Telkom disrespect of long standing customers

Telkom ignore official emails from clients and when you call their "Helpline" they refer you to their website where forms they talk about are nowhere to be found. Telkom are quite happy to take instructions for decades from official customer email addresses until the service is cancelled then they do everything in their power to keep charging unjustly in spite of proper notice of termination of service. This is how they treat clients who have patronized them for decades. Absolutely appalling.