Switching ISPs is a nightmare

I app**** for fiber installation on VUmatel portal on the 31st of March 2018, with Telkom as the chosen ISP. The installation was eventually successfully done on the 25th of May 2018. Internet was not been activated on my fiber line by Telkom and I since asked them to cancel that order - because of the slow nature of the order. They eventually confirmed that the order was cancelled weeks afterwards.

However, I still can't choose another ISP in the meantime on the Vuma portal, and have called both Vumatel and Telkom, to no avail. Both blaming the other company. It's now close to two months since the installation and I've never had active internet on the line. I don't know what to do because at this rate, because that CPE is going to be sitting in my house for months on end without anything running on it.

Can I order another installation in the meantime? I'll honestly pay whatever fee is required, as this has exhausted me.