Direct Express Direct Express Claimed they made a deposit but there was no money when i went to pickup my money there was no money on my card SanAntonio Texas

On July 15, 2015 i recieved payment on my Direct Express debit card in the amount of $870.00. I waited a whole month and three days for the next payment and on August 19, 2015 at about 1am i went to an atm in a chicken place and there was 3 dollars on my debit card i asked where was my money the said that it was a deposit made of $975.00on August the 3rd and i said how is that possible when the last 5 years i recieved payment on the 3rd week of every month and now all of the money was withdrawn off my card.

They told me to cancel my debit card and they will send me a new card in two days, and that i had to file a report to claim that i didn't recieve payment the were suppose to send me a letter to fill out but they never sent the letter, so i called two weeks later. a woman that worked for the said to write a letter of my own she gave me a claim number and said i had  to send it in before the 3rd of October and they would give me a credit or try to put the money back on my card but i never recieved monies for the month of August 2015 i want my money its the right thing for them to do............