How much money could I save from Billshark’s services? August 05, 2017 00:32 NerdWallet members save up to $60 a month on their bills. Related articles Can I negotiate my own bills instead of having Billshark do it? How do I negotiate a bill with Billshark using my NerdWallet account? Where can I learn more about Billshark and their bill negotiation process? Will Billshark switch providers or change my contract? How much does it cost for Billshark to negotiate my bills?