All of our bundles are sold with autostart enabled. It is not currently possible for you to specify a date/time for the bundle to begin.
The bundle will begin automatically as soon as it connects to a supported network with data roaming enabled. There can be an exception to for Apple devices, explained in this separate article How to Prevent Bundles Starting Early on Apple Devices.
None of our bundles will autorenew. They are a one time purchase for a set amount of data. If the customer requires additional data, they will be required to purchase an additional bundle.