Additional SIM for family member

[TJarvis]

Can you add a second SIM to account for member of family, and be able then to share rolled data between the two SiMS, could I gift data? 

[PandJ2020]

Yes.

However, you can't transfer data from SIM to SIM.

You can only move data from the Piggybank to a SIM.  (And the Piggybank is topped up with unused data at the end of the billing period from SIMs)

[TJarvis]

Thanks, does that mean that both SIMs can use the piggy bank data, and both would tip up the pig bank at the end of each month if data is unused?

[PandJ2020]

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@TJarvis wrote:

Thanks, does that mean that both SIMs can use the piggy bank data, and both would tip up the pig bank at the end of each month if data is unused?

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Yes, all SIMs on the account send their unused data to the Piggybank.  (And all can draw from it)

(Unlimited data SIMs do not partake in the Piggybank)

[caesarome]

@TJarvis 

That is correct as long as both sim are on the same account.