paid on student loans but still sent to collections?

[Bpawlyk]

Two of my student loans were in default status with MEFA/ACS in Massachusetts.They told me what I had to pay and by when to remove the loans from default status. I did exactly as I was told. Three days later I was told by phone that the payments were received, applied to the loans, and that I was all set. Two weeks later I looked at the loans online expecting to see that they were now out of default and in pretty good shape. Not-so. Mefa/ACS sold the loans to a collection agency/guarantor anyway. Now they want the entire loan value repaid. What did I do wrong. HELP!!! someone, PLEASE!!!

 

[seniorjudge]

Once you are in default, the only way to get out of default is to pay the debt in full.