Would like me to give electrical usage and current tarrif to enable them to give me a quote. Extremely polite. Told caller I did not have these to hand but if they call ayt specificed time etc. Will have them ready. Wanted to research them before giving out data/and or blocking them. If you are with BT it is easy to block calls. I am with TPS but still got lots of scam calls until BT advised me how to block unwanted calls.