Vangent review: Non-payment of 401k plan funds 1

I worked for (Federal Contractor) Vangent for the CMS (Center for Medicade Services) from 10/23/2010 through 7/23/11. I was unemployed, so I took the temporary position to provide income until I could find regular employment.
The agreement when I was employed was that my wages were $12.XX/hour (by Federal Standard) and a $3.50/hour stipend to cover medical insurance benefits. As I was paying for medical insurance coverage I opted to keep that coverage we had and opted to have $3.50/hour stipend put in my 401K plan, this stipend is collected by the General Services Administration, who holds on to the stipend for 6 months (without paying any interest) to cover any possible charges. The money is then transferred to the contractor’s plan 401k Plan. The GSA did this for the first 3 quarters I worked for Vangent.
I resigned from Vangent giving two weeks notice as I found another job on July 23, 2011.
When I questioned why the stipend I’d earned for July and August of 2011 (approx. $1120) had not been transferred from the GSA to my 401K plan as of the end of October, I was informed by GSA today that I would be required to forfeit this amount by Vangent policy. I’ve requested that this be reviewed by Vangent, but they are not cooperating. I feel that I earned these funds, and I was careful to maintain insurance coverage through United Health Care during this time. I was counting on these funds to be deposited in my 401K plan so that “someday” I can afford to retire.
This contractor is being paid from Federal funds, and I think this is a VERY dishonest, unethical “grab” of funds that I have earned. I requested of the Vangent HR rep. why I was NOT informed of this policy when I initially went to work for Vangent or when I resigned. I have not yet received a reply. (Had I been properly informed, I could have renegotiated my resignation date at Vangent so that I would have received my earnings from the 3rd quarter.) I will be filing complaints with all federal regulatory agencies AND elected officials. Vanget has violated their published core values with this action, and needs to be regulated.