Hey @5h4n31,
If you put Blitz tickets on a set and it expires, you lose the tickets as well. This is, as far as I know, designed in the game itself. Still you can try contacting EA Customer support and see if they can do something about it.
In this case it will be best to contact EA Customer Support to get assistance. It would be helpful to have all your account information ready. You can contact them here :
https://help.ea.com/en/contact-us/new/?product=madden-nfl-mobile
If you are unable to sign in, you can choose the option Having trouble accessing your account? on the Sign In page.
Please note that selecting Manage My Account and then Account Security may not always give the option to contact Live Chat support.
You can get more information on contacting support by following this link : http://help.ea.com/in/article/contact-ea-help/
*** Please grant XP and Accept as solution if my suggestion helped. It will help me as well as anyone facing this same issue. Cheers and happy gaming. 👍 ***