Complaint Review: Yamaha Financial Services

I have a Motorcycle Financed through Yamaha Financial Services that was prevoiusely managed by Synchrony Bank.  In January of 2020 Yamaha sent out a lettter stating that Yamaha Financial Services would now be servicing the loans themselves and with an incorrect account number on it.

 I mailed my next payment to the wrong account number that was provided by Yamaha Financial Services.  Soon after the payment was made Yamaha Financial Services sent out a letter correcting the account number error.  

Now they are claiming I missed a payment which I did not.  Multiple calls to Yamaha Financial Services have been nothing but frustrating if you can even get through, the person on the other end can just read a computer screen and offers no help.  DO NOT USE Yamaha Financial Services.  I now have no recourse but contact an attorney.