Recently, there has been a dramatic drop in customer volume in your organisation leading to a significant decline in sales revenue. Senior management is wondering why so many customers suddenly stopped patronising the organisation. As the Quality Manager, you have been requested to collect data to establish the cause of the decline in customer numbers. Identify any TWO $(2)$ techniques that you will use to collect relevant customer data and establish the kind of information that you will collect to address the problem.

Marks will be awarded FIVE $(5)$ marks for correctly identifying each data collection technique and explaining the kind of data that can be collected to address the problem at hand $(5$ marks $x2$ techniques$).$