Metro Universities Resource

I recently defaulted on my student loan and contacted the student loan company to before they started garnishing my wages. I agreed to a reasonable monthly payment and made the payments on time when I noticed that my wages were being garnished as well. I contacted the student loan company several times and they kept saying that they would remove the garnishment and that my employer had recieved the paperwork. I contacted my employer’s payroll and the stated that they never got the paperwork and I should ask for a copy myself to fax it in myself just in case. The student loan company wouldnt give me a copy of the garnishment letter to the employer and claimed to have faxed the paperwork in. It has been 4 straight pay periods and nothing has been done meanwhile im still making monthly payments directly from my bank account. Is there anyway to stop this? PS: I dont need smart remarks about you should have paid in the first place, i know that much but i couldnt afford to at certain points.