Santander customer satisfaction using decision tree

This problem is from Kaggle. The problem is quoted below as it is on Kaggle: "From frontline support teams to C-suites, customer satisfaction is a key measure of success. Unhappy customers don't stick around. What's more, unhappy customers rarely voice their dissatisfaction before leaving. Santander Bank is asking Kagglers to help them identify dissatisfied customers early in their relationship. Doing so would allow Santander to take proactive steps to improve a customer's happiness before it's too late. In this problem, you'll work with hundreds of anonymized features to predict if a customer is satisfied or dissatisfied with their banking experience."

This is a companion discussion topic for the original entry at