poor service from VUMA TEL FIBER

I upgraded from LTE MWEB to VUMATEL FIBER, initially when I spoke to a friendly consultant, she said I will be prorated, after the application I was asked to pay a full amount of R399, I got a call from vumatel asking when I'm available, I gave them Friday 13h00, they came just after 4pm, the technicians did half a job, they did not finish and only came Saturday , today is Tuesday, since I was told that my fiber will be activated, this frustrates me as I work from home and don't have data and has to top up from my own pocket as LTE is useless, network problems are endless.