HELOC Payment Calculator. I'm selling my house with a closing date of January 9th.I received my mortgage payoff letter from Pennymac that is good through January 12th. How can I request a payoff statement? Contact your servicing bank (where you make your monthly mortgage payments) and request a payoff statement. Depending on your lender, you may have to sign in to an online account, call a helpline, or send a formal letter to start the request process. The mortgage payoff statement is a document that provides a comprehensive breakdown of the remaining balance on a mortgage. If you're an existing borrower with a Suffolk Building Society mortgage find out how to manage your mortgage, borrow more, change your deal and get support. You can check your payoff balance, make a payment, review your payment history, change your payment amount or send additional payments using Retirement Online.