Hi
You can only activate your SIM online if you're a pay monthly or small business customer.
If you're a pay as you go customer, please call 191 from your Vodafone mobile or 0333 3040 191 from a landline.
Info from :
http://www.vodafone.co.uk/vodafone-uk/Error-Pages/wsa-error/index.htmCheck their masts status via
https://www.vodafone.co.uk/our-network-and-coverage/uk-coverage-map/Contact CustomerServices to have your account checked.
Is anyone else in your area on Vodaphone having similar issues.
Where did you get your iPhone from ?
Trying ure Sim in another phone as a process of elimination 2 rule out the phone or sim that may be at fault.
Sim swap to move your number and tariff from your original sim to a new one.
Resetting the Network on the iPhone via Settings-> General -> Reset -> Reset Network Settings.
Apple Stores run diagnostics via Genius Bar Appointments. 's link to make an appointment is
https://www.apple.com/uk/retail/geniusbar/
Current Phone >
Samsung Galaxy s²³ Ultra 512gb Phantom Black.