National Bureau of Merchant Services NBMS; IRN NBMS/ IRN is continuting to illegally take money from my account , Internet

I choose IRN for processing two years ago and cancelled due to higher processing rates than were promised as well as needing to change for other reasons.  I paid the cancellation fee and thought it was all over.  Three months after cancellation I noticed a "pre authorized" check in the amount of $249.17 taken from my business checking account.  the bank refunded the money and tried to find out who NBMS was.  No one answered the phone or called back after leaving a message.  Again 3 months later that amount was again taken from my account.  Same scenario but this time I had to make a police report.  It was investigated and the officer thought it wouldn't be a problem again.  However again in January, march, June and again this week that amount of money has been takend from my account.  I have a large restaurant business and now have to close the account, which is a hassle and huge problem to change everything over to a new account.  I have left numerous messages for NBMS and have not received a call back.  Do Not Use IRN!  Nothing but trouble....