Deductions & credits

I had already received a letter from the IRS explaining my offset and my refund amount. 
I agreed to pay TurboTax $219 in fees. My refund, according to the IRS should have been over $5,000 and was to be deposited by April 4th. The refund from TPG that hit my account was $2200. WHERE IS THE OTHER $3000 of my refund ???? 
after researching this issue, I have learned that everyone who uses TurboTax signed an agreement stating we cannot file a class action lawsuit, but have to instead seek arbitration for this obvious theft of our $. 
currently studying to find out if we can file an actual police report and have this investigated for fraud and theft .