Bill Matrix Bill matrix (Fiserv), Through SoCal gas company payments fraudulent charge for services not used Tustin Internet

Bill matrix is a 3rd party payment service that SoCal gas company utilillizes, for credit/debit/atm or electronic checks.  Payments made directly through checking account withdrawals do not utillize bill matrix's services.  I have always been paying through the checking account and have never utillized bill matrix's services.  I was recently charged the $1.50 services for bill matrix alone, that was not attached to my service payment (~$12).  If I had accidentally used bill matrix, then the charge should've been $1.50 + $12, however, the charge was $1.50 alone.  I have called both companies and both have given me a wild goose chase.  It seems though it is probably not Socal gas' fault, unless there is an error on their website.  I think it is a fraudulent charge through bill matrix.  I am filing a complaint with their company and will provide an update of the response.