H & R Block / Tax Insurance review: Falsely fixed taxes 2005'

In 2005' I went to the H & R BLOCK OFFICE * in Gainesville, Florida in the Publix shopping plaza to file my personal taxes. The H & R BLOCK Employee punched the wrong key while typing up my return. Thus said, I ended up with a notice from the IRS to promptly pay close to $900.00. I went to the store and showed the guy that did my taxes what he did wrong , "He just shrugged his shoulders and said OOPS!" , "What do you expect me to do Lady?" "That was 2 yrs. ago!". I called his supervisor in Ocala , Florida , he said the clerk would file a claim for me since I had proof I had their insurance at the time. I said okay and went back to the Main street H & R BLOCK , where the man flatly refused to own up too his mistake! At this point, I've gone ahead and paid the IRS the money, I don't really owe them. But I'm in the process of hiring a good tax attorney!