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. Comments 0 comments Please sign in to leave a comment. Related articles How can I pre-qualify for a personal loan through NerdWallet? I have a financial question that's not covered here. How can I get help? How do I negotiate a bill with Billshark using my NerdWallet account? How much does it cost for Billshark to negotiate my bills? Can I negotiate my own bills instead of having Billshark do it?