Razer Phone 1 micro SD card support needed

Hi there! As the title suggests, I need some help with a micro SD card issue for the Razer Phone 1.

Okay, so I bought myself a 256GB card from Amazon, from Integral's own store. It arrived unformatted, so I formatted it and copied some files over. I put the micro SD card into my phone, and it said it was an incorrect format. Oh heck. Annoying. Ah well. I can copy stuff over again, so I tell it to format for media storage.

Now the capacity is listing as 32GB.

Now this would make sense if the card was one of those floating around which says a high capacity but is actually 4 or something, except for the fact that it came from Integral's own Amazon store, and before I copied my files over initially, I ran some SD card verification tools to verify its capacity and it was 256 (well, 239 technically).

So my big questions are how do I get my full 256 back, and how do I format it so the Razer 1 can actually use the 256?

Issue occurred on version Android 8.1, though I have since updated to Android 9 while in work.