Installation date lies inconvenience my daily job and move

I revolved the moving into my part mentioned around their installation date promises. I have signed my lease and everything. What is worse is that I am a remote worker. I can't attend work without wifi and they have gone quiet. Making me pay a fee and making me sign a debit order they have secured their income and have not fulfilled their 7 to days 10 installation promise. I am crushed as I don't not know what I am going to do now