Mr.Cooper Nationstar mortgage Continuously adding unexplainable charges and keeping money in surplus acct? Dallas Texas

my mortgage was taken over by this company and since takeover of Nationstar has Ben delinquent. I kept getting mail to do a modification loan and when I called to ask why they informed me I was delinquent by 2 payments. I added these payments to a chapter 13 and have since made all my payments. Today I called to see the so called delinquent balance as I wished to pay and get out of chapter 13 and clear up. I was told I am not delinquent then told I am delinquent? I was told to send 215$ to bring my acct up to March of 2018.today is January 15 2018. In speaking with rep I was told there is 803 $ in a suspense acct. they could not tell me why this money was there but that I could use it for future Payment. When I asked where it came from could not tell me. I asked why they said I was behind 809$ if there is 803$ sitting in a suspense acct? Now I'm told to become current and fix everything I will need 1587 $ for delinquency and 215$ for my next payment. I am totally confused. I asked if I have a grace period once this is all paid and was told that they give No Grace Period. I was told it takes 3 to five days once I pay thru my checking acct directly to them for it to reflect the payment. My receipts show being pd before the first of month but there's show after the first. They can charge me late fees since I have no grace period. This is so illegal what they are doing and puts people in jeopardy of losing homes. I've had my home for 18 yrs and I see no money coming off actual loan at all. This company needs to be audited by  government. Who keeps 800 $ in a surplus acct and then tells you that you are 800$ behind plus late fees etc?