GS
You have to look for where it is on that site, some times either they are not running or I just don't see it.
https://4gantennashop.com/5gbplan
Make sure you lock your video to 480p or less and it's unlimited if it is on their Binge on list. Certain music like Pandora and iheart are unlimited too.
Even if you burn through you high speed, it doesn't shut off. It has unlimited 2G that averages 256k. Mine was on 2G after a computer updated 10 days into my month. It's actually usable. You tube takes a bit but Pandora works fine.
It says it works with hotspots like the ZTE z917, z915, etc. I don't know if it's bring your own device, I got mine from them. What ever you use I would strongly suggest that you get a device that has band 12. That is more important than anything else on T-Mobile as it is their long range band. I have the Z915 and not only gets band 12, it can be used on any network after you use it on 4gas. I had a different hotspot that didn't get 12, They sent me the z915 and said try them both for a week or so, send one back.
When I signed up in January I had to pay for 3 months in advance. There is $2.71 added to every account big or small. It is a business thing no matter how small or active the business is. Somewhere I have a FED from a company I never got going, it would work.
When you call, they answer within business hours. I have spoken with the owner Robert a handful of times and they are all pleasant and helpful. Last thing is they offered me a free month if someone signed up. I told them to tack it on to that persons initial period. Tell them that and that James Barnaby sent you.