said by k9iua6:
To get the modem fee removed, take your modem purchase receipt into your local Mediacom office and deal directly with the clerk at the counter.
What a lot of people don't understand is Mediacom has to prove it's their modem. Did you sign a receipt with the modem MAC on it? If not they can't prove anything even if it was their modem.
I keep my receipts but a lot of people don't.--
I speak for myself, not my employer.