No fibre installation

I'm at my wits end. Although contacting and speaking to Afrihost agents are easy. I've been waiting more than the 7day turnaround time for Vumatel to come and install my fibre. I've been assured that my installation has been escalated but, to date I've had no call from a fibre installation technician. For the past week, I've been following up with Afrihost every single day and the only feedback I get is " your installation has been escalated and someone is going to call you". Its going on to week 2 and I have had no call and no INSTALLATION!!!! After I've paid everything I have to, I've had no installation and I'm tired of contacting service agents and getting nowhere.