Terrible service don't come out when they are supposed to

We did an online application for the special they advertised of uncapped for R599 per month. Since beginning of January 2018, we only get dates when the technicians will come, then we have to take off work to stay at home the whole day but they never pitched. They only pitched the one day and said he will come again there was not enough lines, that was sorted, when a person keeps on phoning 10212 or 10213 you battle to come through and when you do they just say they will give it through and give reference numbers they will contact us up to date nothing zero.