A trial of alleged mis-selling of shared appreciation mortgages (SAMs) by Bank of Scotland plc (BoS) is listed for early 2024. In this article Benjamin Pilling KC and Ruth Bala of 4 Pump Court review the issues in the case. Does the “excessive” finance charge generate an “unfair relationship”? Will the court be willing to use the “unfair relationship” provisions to rewrite a mortgage, where there was full disclosure upon inception of the level of the finance charge (c.f. PPI, where the high level of commission was undisclosed)? The authors also consider limitation.