If you are looking to troubleshoot any DirectTv devices then click here http://soc.att.com/2yEr2Y6. You should be able to find all the information needed or call the phone number on the top of your bill.
The issue and preferred resolution, in GetHuman762376's own words:
The problem I ran into: Trying to get balance - says card nunber entry is invalid
I trust that Green Dot will make this right and come up with a resolution that is fair.
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