If you need or want a mortgage, then you can easily get a mortgage that is not the best one for you. Mortgages are often missold by sellers claiming to be experts. One day they all push Endowment mortgages, then Repayment mortgages or Low Start mortgages or Overpayment mortgages or Fixed Rate mortgages or Offset mortgages - and each type will also have different interest rates available.