https://www.ndtvprofit.com/business/jio-effect-airtel-offers-30-gb-extra-free-sim-delivery-details-here-1751472-10509970
The offer is valid on all Airtel postpaid plans apart from the Rs 299 plan, according to the Airtel website.
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https://ee.co.uk/help/mobile/manage-use/pay-as-you-go/data-rollover
This article explains how EE's Data Rollover allows you to carry over unused data from an eligible 30-Day Plan.
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