How do you prevent disputes from becoming chargebacks?

There are several methods to prevent disputes from becoming chargebacks. One of them is to issue a refund before the cardholder files a dispute. Other prevention methods include, but are not limited to:

Clear and transparent return policies
Emails that inform customers of a recurring transaction
Merchant descriptors (contact information included)

True fraud disputes can be prevented by following a set of best practices. This will involve tools such as pre-sale fraud screening and scoring, and early dispute notifications.