8 days and counting....fibre line is down

It is 8 DAYS since our fibre line went down and it is STILL not fixed. Both my wife and i work on computer-based businesses from home, and we use a VOIP line, so you can imagine the costs we are racking up using cell phone data and calls, going to coffee shops, etc. WebAfrica - our ISP - logged the issue with OpenSource on Wednesday last week, and it is Thursday more than a week later with NO progress. A technician did come on Friday and checked the router and the routing box but said it is the underground cable itself at fault. Since then...NOTHING...