If Wi-Fi Assist is turned on, your phone will use mobile data when the connection to the Wi-Fi network is poor.
Solution: Turn off Wi-Fi Assist.
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*Annual Price Increase: The monthly cost will increase each year on 1 April by £2.50 for Pay monthly plans with Airtime/Data, and £3.50 for Home Broadband plans. This doesn't affect Device Plans. More information: vodafone.co.uk/pricechanges
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