Hi! 

I understand that you are mad. Still, there is no bug in the game that would make the units leave the Bunker. 

It is sometimes possible for this issue to come up after pushing the “Send“ button as the requested information must be transferred to a server and return back. Naturally, this procedure takes some time and its success depends on various technical factors. However, for different reasons such as a slow internet connection, problems with available free RAM on your device, etc., this procedure can sometimes be aborted and your request processed incorrectly.

Plarium does not take responsibility for any losses attributable to problems with a player's system (i.e. device, internet connection, etc.) or with any system owned by a third party. For a further explanation of our Refund Policy, please view the following URL: https://plarium.com/en/refund-policy/

I verified that they were in my bunker!

I am not the only one that has had this issue & I proved it last year, But of course it is "Not a bug" OR "your responsibility"