Fed up with Telkom service.

Hi, last year October l took out the 40GB SmartBroadband Wireless Top Up Deal with Telkom. In May l upgraded to the LTE WIRELESS UNLIMITED ALL HOURS Deal. What a big mistake. Every evening from around 17:30 -22:30 there's no signal. I have to call the call centre every day and nobody can assist in sorting out the problem. First they tell me l don't have enough data (9.6tb data left for the month of June) bs. I haven't even used 1tb. Cause there's never signal when I'm at home. Then the next excuse I'm on off peak, but l signed for the Unlimited all hours deal, ***?. I am really getting fed up now as the service is really pathetic. Everybody opens case numbers, but nobody even replies or seems to know how to assist.. I'm being told to go to a Telkom store and ask them to assist. Why should l run around trying to sort out this ****, when it's not what l signed up for.. Somebody please assist.