I am really sorry that you are stuck in this situation. I know the terms and conditions don't state only one outlet will be functional but at the same time you said in your second post:
said by erfans :
Point to be noted is that the Rogers technician that came to activate TSI did not step into the basement. If I remember correctly, he only asked which outlet will be used for the cable modem.
Did you specify when he asked you which outlet you wanted the modem to be connected to?