Support
One person builds and supports Gangify, so your message reaches them rather than a queue.
If you have the app installed
Use Contact the developer inside the app. It attaches your store, your plan and the app version automatically, which usually saves a round trip. You will find it in the app's navigation, and at the bottom of the Help and Settings pages.
If you do not
Email support@gangify.net. Include your store domain, and the order number if your question is about a specific order.
Please do not include your customers' personal details in a support message. An order number is enough to look anything up.