Vumatel cannot sort its own ISPs

Stuck between the devil and the deep blue sea with Vumatel and its ISPs. I bought a new flat and arranged for fibre through Afrihost, only to discover that the previous ISP - Web Africa refuses to release the line. My router has been delivered three weeks ago but it is sitting useless and I am getting excuse after excuse from Afrihost as Vumatel apparently couldn’t be bothered to take their own line back. Dreadfully poor service - rather stick with cellular.