Help Unable to process request?

[zz77]

When I want to check my balance on my phone I'll type the code which is #999# and hit the call button, and it will display unable to process request, sometimes it will work sometimes it wont?
I got this problem yesterday and the day before it was working fine.

 

[dontpanicbobby]

I'm getting the same thing with #999# and #225# here in BostonMA.

 

[dontpanicbobby]

The My account app is working fine though as long as I'm using mobile data and not wi-fi.