Wells Fargo & Company Mortgage Complaint

Wells Fargo & Company Mortgage department,

Conventional adjustable mortgage (ARM) Loan servicing, payments, escrow account California

I received a letter from my mortgage provider, Wells Fargo stating that they incorrectly calculated my payment per our agreement terms. As a result, the monthly payment they billed was too low to pay off account by maturity date. They now want to increase my payment. The first letter was provided on -/-/-. Since then I have made multiple calls with no answer to why this happened and why their mistake is my issue now? I called the number they provided on -/-/-. I 've made multiples calls on -/-/-, -/-/-, -/-/- with additional calls on -/-/- and -/-/-. This is only the calls that I have recorded, with additional calls made with no response or answers. The letters I received, started on -/-/-, and there after in -/-/-, -/-/- and again on -/-/- all stating they are looking for answers. I feel that the mistake they made are now on me by increasing my payment and have not held themselves accountable.