Currently Vodafone is offering incoming free roaming plan at lowest validity of 1 month at Rs.75 for postpaid customers against 1 day at Rs.5 for prepaid customers.
Above logic of bias among prepaid and postpaid customers results into higher cost to postpaid customer for same service. E.g. If postpaid customer want to avail incoming free roaming for 1 day, he needs to pay Rs.75 while prepaid customer needs to pay Rs.5. See tariff bias here: https://shop.vodafone.in/shop/postpaid/postpaid-roaming.jsp and https://shop.vodafone.in/shop/prepaid/roaming-packs.jsp

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