Can I still use the self-service bag drop at the airport if I've purchased prepaid extra baggage?

Yes, you can use self-service bag drop at airports where it is available.

Please go to the kiosk to check in, print your boarding pass and baggage tag, and then proceed to the bag drop counter. If you have already completed online check-in, print your baggage tag at the kiosk and proceed to the bag drop counter. Please view our airport self-service page for details on participating airports.