Shares in Bradford & Bingley (B&B) today slumped to just above its rights issue price after shareholders balked at a new rescue plan following TPG's decision to pull out of a deal when Moody's, the credit rating agency, downgraded the lender's debt ... Another important benefit of refinance mortgage loans is that gives the borrower more flexibility. It allows you to change loan terms from a long one to something shorter. In this way, you can pay off the principal more quickly, thus saving you from the total interest charges.