Great questions! I totally understand wanting to downgrade to save some money while you are not using it. You can switch plans whenever you like but waiting till the last day of your cycle will make it easier to read it on your bill and you will avoid having prorated charges for partial month’s usage. As for the data stash, you would need a 6GB or higher plan in order to maintain your data stash and continue to accumulate it.
Ahhh, good catch on the 'Data Stash' not being available on the plans less than 6GB. So, I think what I will do is go to the 2GB plan until February or March, then switch back to the 10GB plan. That way, I'll have some banked 'Data Stash' when we start using it again. Also thanks for the advice on waiting until the last day of the cycle before switching. It makes sense that it will make it easier to read on the bill.
Off topic, We LOVE the Binge On service! Its the reason we chose T-Mobile for our hotspot plan and it really enhances our internet usage. Fantastic!!!
I have another question, but I will create another conversation for that, since its unrelated to this topic.