Product: Student loan

I received an invoice from ECSI dated, XX/XX/XXXX ( see attachment ) outlining I owe a total payment of {$350.00} with a past due amount of {$310.00}. The invoice did not have identifiable information such as what school this amount is owed to as I have a total of 3 separate loans with ECSI, 2 of which are with XXXX XXXX and the other XXXX XXXX XXXX which is supposed to be reassigned to the Federal Government. Moreover, upon checking my accounts listed with this loan servicer, there is not any documentation matching this invoice. 

Suffice to say, this is very upsetting due to the fact, I reached out to ECSI in XXXX of XXXX regarding listed past due amounts when clearly all of my loans did not have any past due amounts. This has been an ongoing problem with ECSI regarding my loans as I have had to file now a total of 3 complaints about this company attaching late fees that are not merited to my account. I have always done my diligence in keeping my loans in current status. Additionally, ECSI assured me via phone call, E-mail correspondence, and mailed letter, after responding to a complaint that I listed with Consumer Financial Protection Bureau that all of my loans were in a good forbearance status. 

The loan identified by account code : XXXX which when I checked this morning is in approval status as of XXXX XXXX XXXX XXXX XXXX However, upon further review of loan, XXXX ( XXXX ) it is stating as XX/XX/XXXX that my loan was declined because of additional documents were not received in 40 days which is simply NOT true as I sent in and received approval for both loans which are for XXXX XXXX  XXXX Please answer the following regarding XXXX ( XXXX ) : Why is there a different account number shown in the invoice dated/generated XX/XX/XXXX? 
The account number for the loan which is ( XXXX ) on the generated invoice if the loan in question is with XXXX XXXX  as the account number that corresponds with both XXXX and XXXX- ( XXXX ) is XXXX How could the invoice date ( XX/XX/XXXX ) precede the update on the account as the account was updated on XX/XX/XXXX reflecting the forbearance was declined? 
Why is the update stating the forbearance was declined listed behind the approval status which makes upon first glance to appear that the account is in good standing only to read below and find a decision dated XX/XX/XXXX that the forbearance request on the loan was denied? This is an example of outright DECEPTION! 
What caused the forbearance to be declined when I sent the appropriate forbearance forms that corresponded with the request for XXXX ( XXXX ) ( see attachment )? Moreover, ECSI responded back that the forbearance was approved? See the approved document that clearly states the forbearance references XXXX ( XXXX ). 
I have attached a letter from ECSI dated XX/XX/XXXX that ECSI had received my paper work with XXXX XXXX  and that my forbearance request had been approved from XXXX and that a late fee of {$12.00} was going to be removed from my account. 
Also, the amount does not add up to what I owe to XXXX XXXX  if this is the loan in question. 
The amount corresponds with what is owed to XXXX XXXX XXXX. If this is correct, why are you billing me for money that is not reflected in the account as the account is stating that the loan has been assigned to the government if this is true, why did I not receive official notification on government letterhead that the account is in their hands? Moreover, if the account were assigned to ECSI ; accordingly, why did I not receive official notification that the account is to remain with ECSI? 
The account ( XXXX ) is showing that nothing is due as I have attached what I printed from ECSIs website regarding my account with XXXX XXXX XXXX XXXX Also, the XX/XX/XXXX letter stated that the account was in pending status to be assigned to the Department of Education. However, now the account states that it has been government assigned ( see attachment ). So, why is ECSI billing me for an account that has been government assigned? 

Can someone please correct my account and provide me an update that the concerns that I have listed within the context of this letter have been taken care of? 
Thanks, XXXX XXXX