Lack of Communication, Lack of Service - NOT IMPRESSED!

This company drives me CRAZY! They were very quick to respond to my query to apply for fibre but their after sales services is non-existent. They have for your convenience a WhatsApp number whereby you can select the various options for assistance - IT NEVER WORKS. Their landline number just rings and rings and rings. If your account is in arrears they are quick to send you an email BUT you cannot talk to anyone. They increase your premiums WITHOUT any prior notification, I have emailed them and over a month later I am still waiting for someone to call me. I have decided that best I get in my car, and physically drive to their premises to try and get my query resolved. Honestly, I AM NOT IMPRESSED with the service of this company.