If I was automatically switched to the Unlimited subscription, can I return to my previous rate plan, and what will happen to my invoice?

Via your Mobile Vikings account you can easily switch to another subscription. Your “old” subscription is no longer available, it has been replaced by the Unlimited subscription. The current bundle period will continue until you current bundle expires. Your newly selected price plan will then be renewed every 30 days. You’ll pay for your new bundle right away, together with out of bundle costs of your previous bundle, if any. Your new rate plan’s bundle will be available immediately, but you’ll use your previous bundle first. Your next invoice/payment invitation will be issued one month after your switch, regardless of the date of your previous subscription.