Very Unprofessional

I app**** one of the top of the range business adsl uncapped line <br> They install for me the modem and now what there is no telephone if i put telephone it doesn't work and internet not work i am trying to call from 2 days no one pick up phone and then i must pay them for line<br> What is this ????<br> What must i do now<br> No one comming no one answering to