Sorry I didn't reply earlier been away but it sounds like you figured it out. I had to do the same thing, after I bought the LTE card I was going to cut it but there is a store in my area that had a cutter so I just had them cut it to a Micro Sim si...
Never mind, got the Sim Card working this morning. Looks like they shipped the cards before they updated their system to support the LTE sims. Got it going in my Lumia 900, speed is fast!
