Promises and Nothing is done -Over two weeks - No resolution -Pathetic !!!

I am beyond frustrated as a consumer with the poor service I have received from Vodacom. I have posted a hellopeter before 14 days ago being advised that everything has been resolved but nothing has happened. I have still been over billed for May 2018 , I have not been given my refund and my data contract has not been upgraded to the new speed line. Must I go sit and the Vodacom Head Office in order to get this sorted? I am dealing with ********** a person that if you e-mail does not respond, does not give you feedback and an attitude that shows that she is doing me a favour. Guess what I am the customer. There is many Fibre companies out there now, so I am seriously considering moving as a big company as Vodacom is actually useless . It is a painful experience dealing with this company !!!!!!!