Unemployment Insurance Issue

For the past year and a half I have been trying to get Quickbooks to resolve an issue with Unemployment Insurance.  After talking with the state I had a good understanding of what the issue was.  The state put together a letter explaining the situation to Quickbooks, and also included a snapshot of our account.  I have talked to many agents, and spent countless hours on the phone trying to fix this issue and I don't know what else to do at this point.  Our Arkansas state Unemployment Insurance is considered Reimbursable which means we owe $0 to the state.  Quickbook pulled out over $5K from our non-profit account to pay unemployment insurance.  The accountant at the time did not notice this error.  Since the state billed $0, no money was ever received to the state of Arkansas.  They have verified this.  They also said that this has been an issue with Quickbook in multiple instances.  They said that Quickbook pulls the money in another account to pay the state but when $0 is billed and $0 paid to the state that money just remains in that secondary account.  Once we caught this issue Quickbooks reimbursed us the most recent transaction.  But they have refused to reimburse anything else.  Each time they come up with a different excuse that is completely false!  The most recent reason they close the case...they said we did not have payroll during that timeframe.  Which is a complete lie and takes no effort to see in the account that we did indeed have payroll.  It honesly seems like fraud and that they are doing everything they possibly can to not pay us back the money they erronously took.  And I don't know what to do!  Any ideas?  Better Business Bureau?  What are my options?  I am not being paid for this!  I just hate to see a nonprofit being defrauded!