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I'm a pay monthly customer with an unlocked iPhone XS Max. I've had no problems with the London Underground Wifi until I switched the sim out of my phone while I was out the country. Since I've been back in the UK and put the Vodafone sim back in, I keep getting the same message saying I'm a pay as you go customer and to buy a data bundle.
I'm on the lasetst IOS and the lasted WAP profile has been send to my phone, and it's made no differance. I appear to be going around in circles on the telephone with nobody able to sort the problem out.
@music1210 It may be that your network settings may need to be reset after returning back to the UK. If your mobile data and APN settings are set up as a Pay monthly customer, we'd advise resetting your network settings to refresh these. Please be aware when doing this that you'll lose any saved passwords that are stored in your phone for Wi-Fi.
To do this, please go to Settings, General, Reset, and tap 'Reset Network Settings'. Please let me know if you're then able to log in with your My Vodafone username and password. If not, we'll be happy to help further.