Good evening, How many Trade ins can be brought in at one time? This is to purchase a new Note 8

Agreed, you have to go there so they can see it and it is 1 per customer to avoid scammers.

Interesting, I didn't even know there sell phone here

All the promotions I received said 1 per customer, but that was through my carrier. It's most likely 1 per customer.

I am not sure. I have only traded in one for one and the trade in usually cannot be older than 2 years. It also depends on the model and condition of your trade in. You have to bring your trade ins for them to see.