Purchased game no longer showing as purchased

Are you signing in with the same account that originally purchased it? If not, please do.

Do you use one or more profiles on your Xbox? Make sure you have the Account active that made the purchase. If this is the case do the following delete the profile (make sure you have the login details for it before that). After that press the power button
on your Xbox until it turns off. Then unplug the power cord for at least one minute and plug it back in. Restart your Xbox and redownload the profile. After that go to the store and try to redownload the game. Also you could check if the game shows up in the
ready to install section instead of going to the store.

Hope that helps.

Yes, i have my profile and they have their own. I shall try what you suggested but the problem i see is that even on the microsoft website its showing me that i need to pay for the game

Do you use one or more profiles on your Xbox? Make sure you have the Account active that made the purchase. If this is the case do the following delete the profile (make sure you have the login details for it before that). After that press the power button
on your Xbox until it turns off. Then unplug the power cord for at least one minute and plug it back in. Restart your Xbox and redownload the profile. After that go to the store and try to redownload the game. Also you could check if the game shows up in the
ready to install section instead of going to the store.

Hope that helps.

It's because the game is no longer available for purchase from the marketplace. Since the demo still shows the option to purchase it, they have the -1 point there to keep people from being able to purchase it.

Can you show a screenshot of your purchase history that shows the subscription purchases? Considering that Microsoft no longer directly sell year subscriptions, I assume there are at least several purchases in your purchase history.