I recently encountered an issue with the network where the domestic Data was limited to 200 MB per billing cycle which is less than what the daily average now-a-days is.
I was in a Rural part of Texas(near Big Bend National Park) and there was no Tmobile coverage so I was put on USA Commnet and my Data cap for 200 MB -- > finished in the first few hours of my arrival (Enabled roaming data) and I was left with no internet for the whole trip.
It was very annoying since I didnt have access to the internet(not even 2g) to send out emails or do some basic browsing. I tried calling the customer care to ask if they can lift the network limits so I can send out a single email, but the answer was NO! There was no way to refresh the data usage or increase it with a small fee as well.
It is very frustrating for me being a long time Tmobile customer (Tmobile One) and I know the great value I get from the free International roaming that the network has to offer, but honestly the domestic roaming policy is horrible. I would ideally need transparency and the freedom to manage my data plan irrespective of the roaming partner.
Appreciate any feedback on this.
related doc: Domestic roaming data | T-MOBILE SUPPORT