Customers may resent being interrupted at work or at home.
Customers may not answer if they see a number they do not recognise and many of those that do answer cut the phone call off when they realise it is a survey.
Customers suspecthiddenagenda
Customers may think there is a hiddenagenda, such as the company trying to sellanotherproduct or service and so refuse to complete the survey.
Results may not be fullyrepresentative
Telephone surveys may not reach certaingroups of customers therefore the results may not be fullyrepresentative of the customercare.