Missed opportunities to understand customer experience across their service lifecycle
No efficient way to identify trends across hundreds of customer interactions
The Solution: WhatsApp AI Interviewer
Yazi deployed an automated AI interviewer via WhatsApp that triggered 7 days post-installation:
How It Worked:
Automated trigger: 7 days after Wave installation, customers received a WhatsApp message asking for feedback
AI-adaptive questioning: The AI interviewer dynamically probed based on individual responses
24/7 availability: Customers responded at their convenience, not just business hours
Rich multimedia capture: Voice notes, text, and images provided depth impossible via phone
Sample Questions Covered:
Overall satisfaction and likelihood to recommend
Internet speed perceptions and reliability
Connection range/coverage issues
Comparison to previous providers
Specific use cases (work, education, streaming)
Results & Impact
Unprecedented Response Quality
Rich, Contextual Insights:
2,000+ detailed customer interviews collected over 6 months (Mar-Aug 2025)
Customers provided voice notes up to 200 words explaining their experiences in detail
Customer Availability Unlocked
"The beauty of it... it just works at the time that the customer is available and at their leisure. Versus, if you're employing someone to do that internally, it's usually during office hours and people aren't really available." — Matt, COO at Ikeja
Key Metrics:
45% response rate on WhatsApp vs. 6% typical email survey rate
60% of responses included voice notes with nuanced context
Conversations averaged 16 minutes — depth impossible via phone interviews
Strategic Business Impact
Product Development:
Identified specific WiFi range issues led to hardware recommendations
Weather resilience became key competitive differentiator
Multi-device connectivity validated as major selling point
Marketing Intelligence:
Discovered 33% of customers learned through word-of-mouth vs. 32% through sales agents
Found 47% upgraded for speed while 27% for reliability — informed messaging strategy
Captured authentic customer language for testimonials
Customer Success:
Installation delays flagged allowed process improvements
Customer service gaps identified for training interventions
Proactive outreach possible for weather-affected areas
Why This Methodology Worked
WhatsApp as the Interface:
98% WhatsApp penetration in South African townships
Familiar, low-friction experience for customers
No app downloads or email requirements
AI Interviewer Advantages:
Probed deeper based on individual responses
Available 24/7 across customer schedules
Scaled to 351 conversations without human resource costs
Captured authentic voice in customers' own words
Post-Installation Timing:
7-day delay allowed customers to fully experience the service
Recent enough for vivid recall
Captured both initial impressions and emerging issues
"We recently partnered with Yazi on an implementation on their new platform with their AI interviewer. And the results were pretty groundbreaking for us. This AI interviewer was able to steer conversations to places where I don't think we'd get usually on either our telephonic reach outs... The results were quite fascinating and we could see customers' intent around the specific questions that we were asking."