Bad customer service

I have requested the services from home- connect on 16 Jan 2020, and they processed the application. Service provider came and installed the fibre router, but after that, I have not received any feedback about line activation and providing modem. These dates we can't leave without the internet, and I had to spend too much money on data, but we can't keep spending on buying expensive data. I send the follow-up email, but I have not received any feedback yet. If the issue does not sort out very soon, I will consider on cancelling the contract.