Do not get what I pay for

I logged a complaint on the 13 of November Reference nr: ********** 5 regarding very poor download speeds (down 0,03 up 1,39 ping 2062) on my LTE Telkom product. Since then, I went back to the Telkom shop to report that no one has responded and that the problem remains. I have escalated the issue online twice and phoned Telkom mobile twice. The problem still remains and I have not been contacted or visited by any representative of Telkom. I am not willing to pay for something I am not getting.