Sorry to take a while to get back, I'm very busy with client work which has to take priority over free module support

A quick inspection of your settings show that there are few spaces after commas.. i.e. , PA37, and one or two between postcodes i.e. ,IV3 3,

Not that they should (in theory) affect PH, PA, or KA postcodes as reported, but they are glaring errors which might (or not) have an impact on module operation, so need to be fixed.