Testing Authority United States Postal employment Norcross Georgia

I saw an add in local newspaper in Jacksonville, Florida for testing materials to work for the united states post office. They charged my credit card 150.00 and I did receive materials, so I thought it was legit. It took me about 4 months to study book and then when I was ready to take the test I proceeded to go online for testing locations and the 800 numbers were not in use anymore and no websites where found about this issue. I tried looking up phone numbers of people wrote in a flyer from testing authority success stories and when I called directory assistance and gave them there first and last name and city and state where they said they lived and out of the 3 people that wrote they received their refund none of them existed on 1800-555-1212(directory assistance). I called the local post office in Norcross GA and a women told me they received alot of call pertaining to this scam. She informed me to call my local postal inspection service and report scam. What do I have to do now to get my monies back. Someone please help us poor folks that fell for this ad. Desperate in Jacksonville

Deborah
Orange Park, Florida
U.S.A.