Mods wont be back until Monday to help. You could try live chat. To use live chat click support at the top of this page then choose the servuce you need supprot with (bill or pre pay. etc..). Click CHAT icon that pops up in the bottom right hand corner of the next screen.
It takes 8 days to complete the switch from bill pay to PAYG.
Cookie Vodafone Community Expert (or so I'm told) and S10 owner. I don't work for Vodafone