Extremely bad service

Report a problem in January bad connection . I told then I still waiting that your company short out the problem 2 weeks ago they where at my premises. Test show there is a problem. The phone me earlier this week I said the problem is still unresolved. The problem was so bad today the speed test for my 4G show 92 kbps for download and 59 kbps for upload speed. I phone Vodacom...they said the case is closed....This is such bad service and to close the case after I said the problem is still unresolved, just telling me they dont care about there customers...my ref num is S3-8U823-3V-78E