Returned TV box and want to drop TV from bill

I received an email offering the same internet speed Performance Pro at 70.00 and told the HS Preferred XF Bundle (Internet+TV+Voice) had expired.  I have returned the TV box and would like to remove the cable TV service from the bill.  On Mpnday, I was offered $ 122.xx for the remaining Internet, Voice, modem, and fees and taxes.  When I visityed the retail store to return the TV box, they could not make any alternative offer.   I would like to see what my alternatives are at this point.  Is the Service Protection Plan fee needed without cable TV?