Anita - you need two different varieties. Buy a different variety. If you bought your first one at a local nursery, you can always but your second at an online website. If you don't have space for a second tree, plant it very close if you have to. They need to be within 50 feet of each other. And google hand pollinating paw paws. If you want the best crop you can do this.

The tag just had the generic name on it

i’m disappointed with the info or lack thereof i was given by a professional

I've read anecdotally that some people have had pawpaws fruit without another variety. That might only be a few certain types of pawpaw varieties. Pollination from a different variety will probably help it produce much more fruit or be more likely to produce fruit.

If it doesn't have a variety name, it could either be a good tasting variety or a not very good wild one.

You could just try planting it. If it doesn't fruit within 4 years, go try to mail order another one from another nursery. At least you will have a headstart. The trees have to reach some size before they can fruit anyway.

socalnolympia is correct, but life is too short when it comes to waiting years to see if a good crop comes, then when it doesnt, wait years again for fruit. not much reason to grow fruit trees if you are not growing to get fruit. i'd get over fast your disappointment with the "expert" not knowing. maybe you come from a different country, but in this country you can count on one person for information and competence, yourself. if you dont want two trees, return it, otherwise buy a second. done deal. they DO owe it to you to tell you the paw paw variety. in fact, you should save the tag or write down the variety of any tree you buy. this way you will know the variety, AND, to make sure you dont buy the same variety for your second tree as it needs to be different.

a seedling pawpaw is gauranteed to be a different variety, but will take a few more years to fruit than grafted variety and also be of unknown quality. id pick a grafted variety and roll the dice it will be a different variety, or maybe take advice from other posters as i dont have experience with seedlings

Now what on earth would make you question if im from another country? when i buy a plant from a native plant vendor i expect to get correct information just as i would when i buy any product from a reputable company.

I have three PawPaw's that I started from seed sourced from an experienced seed grower. They've been in the ground for 4 years and are not even two feet tall. I've always understood that you need two to get fruit. Based on my experience with growing seedlings I'd say just get a known good variety from a mail order supplier. I'm pretty sure odds are on your side that you'll get something that's not the same variety. If you try to start a seeding for pollination I think you'll be waiting a really long time to get fruit.