how do i enable locations services, after originally not allowing?

You have to go enable it under RESTRICTIONS first if you chose against it to begin with.... then you can alter it in the other places... So go to restrictions first, enable it, then you can go to the other places... like the icloud menu > share my location > enable it to share where you are.... or Privacy > Location Services > On.
I think a big problem is you might have it on in one place and then not others and there are different menus for different places instead of just ONE place to enable any and all location settings. That is what Apple does badly, they have too many settings split up between different menus.... its confusing.

Settings > Privacy > Location Services -- set "On".

Find the specific app under Settings > Privacy > Location Services and make sure that app is turned on.

If you don't mind sharing ... what is the name of the app?

If you would rather not say, that's fine.

I've checked the app and website but came up empty.

Have you tried resetting your iPad? Maybe that will help.

Hold the on/off and home buttons together for about 10 seconds till the Apple logo appears.

Maybe that will reset the location services slate for the app.

Yeah, this was a HUGE help! Thanks!

Perfect! Just what I needed. Thanks Lulu1313.

YYes this worked for the NFL mobile app. Now watching NFC championship.