If the contract states that you were to go on to a standard variable rate I don’t think you will have a case. The other EBS fixed rate contracts state that the mortgage rate is to move to a variable base rate at the end of the fixed term. The variable base rate thread in here explains how that rate is a tracker rate. There were obviously fixed rate contracts that had an SVR as the variable basis and others that had a tracker as the underlying variable basis i.e. variable base rate.