Good evening Craig and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
As a first troubleshooting step, could you please provide us with your system information in a private reply ? (following the instructions found in the link)
I am not sure exactly which E-commerce you are using (which might change my answer). But for now, I will assume that you are using WooCommerce since it’s the most popular solution.
If that is the case, please note that our tickets products follow the WooCommerce standard way of handling stock. This means that:
- If you delete an order OR if you refund an order, stock (ticket numbers) are not automatically added back.
- When an order is deleted or refunded, it was (at least at some point in time) a purchased product, but the status of that order provides more information on that topic. Speaking of which it is usually best not to delete orders, but rather to cancel them or refund them.
- You can always add the stock back manually (either through the product directly or by using the button meant for that purpose OR download a plugin that does that for you (https://support.woothemes.com/hc/en-us/articles/202723293-How-to-Automatically-Re-Stock-Items-in-Cancelled-Refunded-Orders)
Let me know if that helps.
Have a great day!
Geoff B.