We purchased a home in XXXX XXXX with a conventional mortgage through XXXX XXXX. It was transferred to XXXX shortly after its inception. We received a notice in XXXX XXXX that the loan would be serviced by SLS. We did not set up an impound account for property taxes when we purchased our home. 
Because of that, we paid our property taxes prior to their XXXX XXXX due date in the amount of {$2500.00}. In XXXX XXXX, we received a check from our local tax collector/treasurer for an overpayment in the amount of {$2500.00}. After a telephone call to the county treasurers office, I suspected that SLS had mistakenly thought that we have an impound account. I promptly returned the check to the treasurer/tax collector with a letter stating that we do not have an impound account -- never have, never will. I also sent SLS an email alerting them of their error. 
Fast forward to XXXX XXXX, when SLS sent me a bill with a notation that I have a delinquent tax advance charge of {$2500.00} that is due by XXXX XXXX, XXXX. Please help. I do not want to pay for taxes that I have already paid. Please note that our local taxes are due in XXXX installments of {$2500.00}. I have paid XXXX installments. 
