Does the mortgage date between 2000 and 2015 ?
Did you notice any ‘fluctuation’ in your mortgage payments?
Can you provide a sample of at least 3 months mortgage payments, together with Bank statements if possible
Have you signed any other document or agreement with the Bank during the mortgage term, if so, what ?
Can you provide copy Mortgage Deed (Escritura de Hipoteca) and/or Terms of Mortgage Offer (Oferta vinculante de Prestamo – Hipotecario)?
These documents should have been provided to you by either the Bank or your Lawyer or the Notario