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A similar thread How-do-i-find-the-date-my-payg-account-needs-to-be-updated.
Maybe one of the device guides may also help to see data usage stats similar to deviceguides.vodafone.co.uk/vodafone/k5160-windows-10/connection/view-data-usage/
Alternatively do you have a phone you can insert the sim into and use the myvodafone app or myvodafone online option.
🌈Stay Safe & Stay Alert. 🌈.
Current Phone > Samsung Note 20 5G - SM9860 Snapdragon.
Samsung One Ui 2.5 / Android 10.