Telkom Fiber and Support Systems not working

I am running my business from home, and have a 40 MB fiber line Soft Cap. I run out of data in 16th of August. This causes the connection to become very slow and you go into slow data usage. I then topped up my account with another 100GB but it never kicked in. I still have slow internet / unusable internet and my top up is basically money down the drain. I haved logged a fault on 18th of August with no update yet, they have not even picked it up yet. Very unhappy with the service received from telkom support.