I think you will not have, because I don't know any hotel with Inetconnetion on room, may be it is possible with a calling card by the phone in your rooms.
May be you have to ask in one of the Inet coffees in Borovez, but its really expensive in Borovez 6 lev per hour if you want a good connection. Better to go to Samokov there cost only 1,50 lev a hour, normal price for bg Inet coffees.