No service on new line

Tel number ***, Ref number ***A. We app**** for a line to be installed which was done on the 14th of January 2016. It was discussed that the line needs to be converted to adsl for our service provider to manage. A port was installed Monday the 18th January 2016. Since then we have had no communication and no service what so ever. Every time we phone the call centre for answers as to when the line will be ready for our service provider to take over the adsl we get different answers from different people. It is as if no one knows what is going on or talking about!! One person said that it is an automotive system and that the conversion is 90% done. And we are still waiting. No one has kept us updated with the process and so we are left in the dark. What is the reason that it is taking so long to complete the process? This is a matter of urgency, we have 2 students who need the internet to be able to complete their studies so we need the line to be activated asap