What factors are contributing to the 20% increase in customer complaints about Commonwealth Bank of Australia's home loan application process in the last quarter?

Introduction

The recent 20% increase in customer complaints about Commonwealth Bank of Australia's home loan application process is a critical issue that demands immediate attention. As we delve into this product root cause analysis, we'll systematically examine potential factors contributing to this surge in dissatisfaction. Our approach will involve clarifying the context, ruling out external factors, understanding the user journey, breaking down metrics, gathering data, forming hypotheses, and ultimately proposing a resolution plan.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking there might be a recent change in the application process. Has there been any significant update to the home loan application workflow in the last quarter?

Why it matters: Recent changes often correlate with shifts in customer satisfaction. Expected answer: Yes, we implemented a new digital verification step. Impact on approach: If true, we'd focus on the new feature's usability and integration.

• Considering the scale of the increase, I'm wondering about the complaint distribution. Are these complaints concentrated in a specific customer segment or spread across all applicants?

Why it matters: Helps identify if the issue is universal or segment-specific. Expected answer: Complaints are higher among first-time homebuyers. Impact on approach: We'd tailor our solution to address the needs of this specific segment.

• Given the nature of home loans, I'm curious about the economic context. Have there been any significant changes in interest rates or lending policies during this period?

Why it matters: External economic factors can greatly influence customer perceptions and complaints. Expected answer: Interest rates have remained stable, but lending criteria have tightened. Impact on approach: We'd investigate how communication of new lending criteria might be affecting customer experience.

• Thinking about the complaint metric itself, I'm wondering about the data collection method. Has there been any change in how we collect or categorize customer feedback in the last quarter?

Why it matters: Changes in measurement can sometimes be mistaken for changes in performance. Expected answer: No changes in feedback collection methods. Impact on approach: We'd focus on actual changes in customer experience rather than measurement artifacts.