Unwanted calls - and how to stop them - are under investigation as Angela Rippon, Gloria Hunniford and Julia Somerville meet people plagued by a barrage of nuisance calls and test a solution to see how effective it is in bringing the number down. Also featuring an elaborate con that started with a call from someone pretending to be from the phone company, but ended with the loss of thousands of pounds. And, how taking part in surveys may have consequences you didn't expect.