Telkom LTE horrible service

We have been having daily signal problems for over a month. A week ago we reported the issue as the signal lost were becoming intolerable. Every time we phone, they say the technician will give us feedback and that they will send him an email. Every day we phone, every day the same song. Today my husband asked to speak to the supervisor, they then said the supervisor is not there today. He asked are there no supervisors, they then said they will put him through to a supervisor but that is not their direct supervisor. After waiting to speak to the supervisor the lady returned and said the supervisor will phone you back. This is ridiculous, I work from home and require internet access at all time.