01 / CONTEXT
The challenge
Tax-free refund journeys involve multiple steps and local information needs. Generic communications can miss the traveller’s language, context or timing.
02 / ROLE
My contribution
Led a customer-engagement approach using logistic regression and random forest for audience classification, personalized email/WhatsApp content and timing, and a retrieval-augmented chatbot concept for local information.
03 / IMPACT
Outcome & context
Reported email open rate increased from 40% to 50%. Refund completion improved by more than 10 basis points on average during the first six months, according to the project summary.