Extremely Poor Fibre Support from Linteg

After having my fibre finally installed after months of waiting, my line suddenly stopped working after 3 days. It has at the time of this review been down for almost a week. Linteg technicians confirmed that the issue is with the line and not my router. They have been unable to fix it and they claim they are being obstructed by Prestige Matrix, the infrastructure provider. I have received nothing but excuses for days with no indication of when this will be fixed. As far as the explanations go, this sounds like it could be an indefinite period of time before the line is restored.