If you are out of contract this is not a problem. If you are in contract there may be a penalty to pay for exiting it early and switching back to PAYG.
Mods wont be back until tomorrow to advise you on costs and the process. You could try live chat. To use live chat click talk to us at the bottom of this page then choose whether you're on bill or pre pay. It should pop up then. If Chrome browser acts up then try a different browser as some versions don't appear to play well with the links.
Vodafone Community Expert (or so I'm told) and S8 owner. I don't work for Vodafone
I'm sorry to hear that you're unhappy with your bill pay package plan. If you could private message (via the link in my signature) over the below info, I can arrange a call back from our cancellations team?
Mobile number you would like to switch to PAYG:
Date & time you will be available to take our call (our cancellations team are available Monday - Friday from 9am - 6pm):
Link to your thread or post:
To send me a private message, simply click here
Please include a link to your thread when sending these over - due to the volume of queries, PMs without a thread link will not be answered.