Welcome to Vodafone Community
What is your APN set to under network settings on your phone?
Did you tether/use your phone as a WiFi hotspot?
Are you bill pay or PAYG?
If PAYG do you have credit?
We'll have to wait for mods to look at the account. Did it take the credit from your account?
If you could private message (via the link in my signature) over the below info, I can look into this for you?
Security PIN (or, if you don't have this, your address and date of birth):
Link to your thread or post: