It will be credited back in your next billing cycle.. Its most possibly some kind of tax. This happened to me as well and they refunded me back in the next bill. It should be ok. If it does not happen (which is the most unlikely case), please call DIGITS BETA Special help line @ 1-844-889-5651 and they should be able to take care of it.
This thread was the product of our fantastic collaborators during DIGITS Beta! As many terms have changed and bugs have been exterminated since the Beta launched, the information here may no longer be accurate. If you still have a question, please search our active threads or ask a new question in the DIGITS space!