If you were lucky enough to pay JK Harris with a credit card...
...call your Credit Card Company, and dispute the charge for 'No Service Rendered'.
You will get ALL of your money back.
You will then get a letter a from JK Harris offering you a 'partial' refund if you sign a waiver agreeing to never sure them, join any class action lawsuit against them, or say a negative word about them. Since you already got your money, file the letter and do not respond to it.