hello, this is my first time posting here--sorry if i'm in the wrong section.
i have absolutely zero knowledge about any legal processes and any advice is much appreciated.
quick backstory - this debt was from an old student loan issued by sallie mae 11/07 which i defaulted on and it was written as a charge off. the last payment made was 05/12 and was reported on my credit 02/13. i can't remember the exact date, but i was served/sued by Neuheisel law firm either 2014/2015 and never went to court and had a judgement placed against me.
last year 2016 i had a levy placed on my bank account which cleaned out all of my accounts and the information i recieved from my bank was that the company trying to collect was now Cach LLC. i am not sure if they are the same. i did get in touch with this company and they told me that they do not accept any type of payment plans and that this would have to be paid in full which is impossible for me. i'm a single mom with a 1 year old and after all of my bills/rent i have no extra money.
after they collected what was left in my account and my initial contact with them, they tried to call me a few times after to collect the rest and then the calls just stopped.
fast fwd to yesterday, i recieved a letter from Gurstel Law firm stating that they "are representing Cach LLC to try and collect on an account that was previously placed with Neuheisel Law firm...at this time no attorney with this firm has personally reviewed the particular circumstances on your account..."
i'm at a loss of what to do right now, i've tried searching for cases similar to mine and have found very little. the letter they sent me just gives a balance amount and states that the balance may vary day to day because of fees and if i send them a check right now they will let me know of any adjustments i may need to pay.