Question About Norton subscription Expiration

So I have a particular norton subscription (Anti-virus).

I requested a 30-day extension (reason: couldn’t make the payment), which was granted.

I realized I dont have enough to make the payment even after the 30-day extension.

If it were to expire, would there still be a chance to re-activate it, and what would be the time window?

If it expires, you may be able to go into your Norton Account and check the My Subscriptions page from clicking on the user icon at the top right. Find your expired subscription and see if there is a renew button. If there is click on that. If not just purchase a new subscription which will likely save you some money.