CELL C HORRIBLE INTERNET

I have recently renewed my contract with cell c for the LTE 50gb package for R359 a month. In this time period i keep experiencing down time and bad connectivity up to a point where i cant even use my data or internet on two bars of internet!!! I have logged a call on monday and there was told i would be contacted in the next 28/48 hours from the networking team WHERE NOBODY contacted me! As of this point i am extremely disappointed and really consider to cancel the contract as i have no use for this except maybe download at times and some streaming where it allows me !! I have to go and purchase data extra a month on my telkom sims just to have some decent internet at home some day. As of last night 05/12/2018 at 18:17 i had two bars on my router and got a 287 PING 0.31MBPS download and 0.16MPBS upload. This is so bad i cant even load a website !! When i went for the contract the consultant promised me for life and death that our area has a decent connection, was this just a story for me to renew the contract ? Why am i paying for this horrible service monthly ? After a reboot the router works fine for an hour then the connection goes horrid again ?

PLease advice what would my next steps be as this issue has not been resolved and i dont see why i have to pay anymore

Regards