PHH Mortgage Mortgage Complaint

PHH Mortgage Mortgage department,

Conventional fixed mortgage Loan servicing, payments, escrow account Washington

My mortgage was transferred from - - to PHH Mortgage effective - - 2016. In the Notification of transfer I was instructed to make my next payment to PHH in the amount of $1800.00 which I did. PHH applied the payment to principal -/-/-. -/-/-, I checked my account online to find my monthly payment due -/-/16 was $1900.00. I never received an invoice or bill explaining why I was instructed to pay the lesser amount and that I needed to cover the difference by -/-/16. I contacted PHH today -/-/16 they said I could pay the difference over the phone but I am away from home on business and do not have my routing number available to make the funds transfer. I am afraid by the time this gets settled my payment will be late and that will effect my credit score.