Complaint sub-issue: Trouble with how payments are being handled

On XX/XX/XXXX I started paying back my loan with a monthly payment of XXXX. XX/XX/XXXX I asked for a deferment because my job cut my hours due to one of the doctors leaving. Deferment was for XX/XX/XXXX, and XX/XX/XXXX. During the deferment period I still made payments towards my loan, so interest would not go u to high. OnXX/XX/XXXX I received my new bill of how much I would be paying a month now after my deferment. The monthly amount now would be XXXX a month, which was a little bit of struggle for me, but I continued to pay the bill to the best of my ability. During that time I even called to see if there was any way to lower the loan with a program, but unfortunately the programs would make my monthly bill after six months to high for me to afford. In XX/XX/XXXX I received a letter stating that the loan company was going to change the amount I pay a month and the date I pay it on to XXXX on the XXXX of each month starting XX/XX/XXXX. The wrote as explanation that they are changing it because I would not have aid my loan in full with in my current payment terms, so my monthly amount needed to be adjusted. I have a fixed rate with the loan company and I was already paying XXXX a month for almost about 4months. I called Discover student loans services and explained to the representative my situation, he transferred me to the accounting department, where someone could explain and help me figure out my payments. Once I was transferred over I was told that about the six month program once again, which I explained I do n't want to do that because I do n't know if I will be able to pay more in six months. I asked if he could give me a more detailed explanation as to why all of a sudden they were changing my bill. He tried to blame it on my deferment in XX/XX/XXXX, but I explained to him that was n't the case because I have been paying XXXX for almost 4 months now. He asked if my loan was at a fixed rate which I told him yes. Then he asked me to read what the letter said. Which I did and all he said is that was the reason. He did not give me no real explanation and he even told me he could not doing anything about it going up. he just basically kept going back to either six months programs were I can pay XXXX a month and that would bring it down back to being XXXX after six months. I explained I do not have that type of money I have 3 other student loans and I am already having a hard time paying this loan. Which he just kept throwing number at me and I tried telling him this does not work for me because I do n't have any extra money at all. I also explained to him I 'm lucky to have parents because if I did n't I would living out of my car with the amount of money I pay you guys a month to try to show him my point of where my financial status I right now. He basically said he can not put it back to being XXXX a month all he could offer me was the payment choices he just said to me. I ended the phone call with discover because they did not help in any way at all. They could not give me a real explanation about my payments and I felt like they were digging my financial hole deeper. It concerns because what if they send me another letter in four months stating the same thing in this letter raising my monthly payment even though all my loans are on fixed rate payment agreement.