How to upgrade 3 G Hotspot to 4 G
I have used up 3 hours of time over two days trying to upgrade my 3G hotspot. A rep at the AT&T store said to call the 611 number and ask for a free replacement. Is there anyone in the US who can help with this? The overseas reps are hard to understand and they don't seem to know what I am talking about so they wing it. They transferred me to the Rewards line, to Tech Support, back to the main number plus I was hung up on three times. Thank you for any direction you can provide.