Very Poor service delivery

I’m sending this complain today to express the level of disappointment I have experienced with the Telkom network when it comes to service delivery. I have been calling Telkom for the past two weeks regarding cancellation and contract adjustments but I always get the same response “we are currently offline” and which is very frustrating for me hence I really need to make some changes but all the consultants are really useless and on top of that they make you wait for over 45minutes before they answer your calls just to tell you that they can not assist and this has been happening everytime I decide to call Telkom. I do understand sometimes the systems can have a glitch but it can not be all the time I call. Can someone please from higher level deal with this matter with urgency please.