Need Urgent Help

I was talking to a dell agent and lost connection and they made it so i cannot use my internet on that computer...it wont let me chat with them now without having a warranty, i dont want to call them cause it cost to talk to them :(       what else can i do? is there a way to talk to them without having a warranty? Im hoping i can get this fixed cause i just ordered a bunch of stuff for that computer that i probably cant return now...Thanks dell....