How do I prevent T-mobile from deactivating my sim card?


    I use my hotspot only occasionally.  I understand you want some money occasionally - but please spell out the policy.  E.g. Tracfone has "service days" that you buy, and they deactivate when you run out.  I live in dread that my hotspot could deactivate at any moment, and I'll have to buy yet another sim card.

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