TMobile One Plan - Roaming internationally &want a higher data speed


    Hi - I am on TMobile One Plan which provided 2X faster Global data roaming (up to 256kbps). How do I upgrade it?


    Per my research, the only way is to add an On-Demand Data Pass. But I just got off the call with customer care and according to them, I cannot add the On Demand Data Pass to TMobile One plan.


    So, at this point, I do not know how to get higher speed while traveling even when I am ready to pay the extra dollars for it.


    Please assist!



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