ICASA failing consumers, contratry to promise to uphold fair customer service

I have a complaint laid against MTN as they have changed contract terms mid-term without communication nor proper explanation. several email complaints between MTN (including ICASA) have been sent with no feedback from ICASA(***/22). Got initial email confirmation from Nditsheni Hangwani (***), ever since the email with reg number and confirmation of receipt by ICASA, no further assistance was received. the number called ***, never goes through. On 6th I called ***, and was advise Hangwani's manager isnt available and provided with his/her email address ***, and to date no response to my email still.