I'm a brand new customer as of Wednesday. Today (Friday) I see there are much better promo plans than were available on Wednesday, but when I try to switch to them in self-service, it says I can only change plans once a billing cycle. I assume the system is counting my new activation as a "change" in plan. Is there any way to get around this? How long will this promo last? I really don't want to miss out on the $45 promo plan that was posted today. They guy at the kiosk told me I could change plans "any time", so I'm feeling a bit lied to right now.