Customer service can do this for you. Persist and try again to get through to them. They can transfer everything to your new sim and you will lose nothing. Did you try phoning 1-866-310-1023?
Another solution is to go to a hole-in-the-wall cell phone shop and ask them to cut your old sim card to size. The guys near me did it for free. Even if they charge, is certainly going to be a lot cheaper than the $10 Speakout wants for a new smaller sim card.